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Mendelian inheritance

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from their mother's side or their father's side. Pedigrees can also be used to aid researchers in determining the inheritance pattern for the desired allele, because they share information such as the gender of all individuals, the phenotype, a predicted genotype, the potential sources for the alleles, and also based its history, how it could continue to spread in the future generations to come. By using pedigrees, scientists have been able to find ways to control the flow of alleles over time, so that alleles that act problematic can be resolved upon discovery.
1096: 1397: 1409: 211: 694:. The exact nature of the "re-discovery" has been debated: De Vries published first on the subject, mentioning Mendel in a footnote, while Correns pointed out Mendel's priority after having read De Vries' paper and realizing that he himself did not have priority. De Vries may not have acknowledged truthfully how much of his knowledge of the laws came from his own work and how much came only after reading Mendel's paper. Later scholars have accused Von Tschermak of not truly understanding the results at all. 1128: 1604: 1252: 380: 1475: 494: 1618: 86: 45: 894: 128: 797:
the side of the chart, and each contribute one of them towards reproduction at a time. Each of the squares in the middle demonstrates the number of times each pairing of parental alleles could combine to make potential offspring. Using probabilities, one can then determine which genotypes the parents can create, and at what frequencies they can be created.
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up with any combination of paternal or maternal chromosomes. For human gametes, with 23 chromosomes, the number of possibilities is 2 or 8,388,608 possible combinations. This contributes to the genetic variability of progeny. Generally, the recombination of genes has important implications for many evolutionary processes.
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In independent assortment, the chromosomes that result are randomly sorted from all possible maternal and paternal chromosomes. Because zygotes end up with a mix instead of a pre-defined "set" from either parent, chromosomes are therefore considered assorted independently. As such, the zygote can end
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Punnett Squares are a well known genetics tool that was created by an English geneticist, Reginald Punnett, which can visually demonstrate all the possible genotypes that an offspring can receive, given the genotypes of their parents. Each parent carries two alleles, which can be shown on the top and
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For example, if two parents both have a heterozygous genotype, then there would be a 50% chance for their offspring to have the same genotype, and a 50% chance they would have a homozygous genotype. Since they could possibly contribute two identical alleles, the 50% would be halved to 25% to account
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was contested by other biologists because it implied that heredity was discontinuous, in opposition to the apparently continuous variation observable for many traits. Many biologists also dismissed the theory because they were not sure it would apply to all species. However, later work by biologists
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The Law of Independent Assortment proposes alleles for separate traits are passed independently of one another. That is, the biological selection of an allele for one trait has nothing to do with the selection of an allele for any other trait. Mendel found support for this law in his dihybrid cross
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Pedigrees are visual tree like representations that demonstrate exactly how alleles are being passed from past generations to future ones. They also provide a diagram displaying each individual that carries a desired allele, and exactly which side of inheritance it was received from, whether it was
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Mendel's results were at first largely ignored. Although they were not completely unknown to biologists of the time, they were not seen as generally applicable, even by Mendel himself, who thought they only applied to certain categories of species or traits. A major roadblock to understanding their
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generation all combinations of coat color and fur length occur: 9 are short haired with solid colour, 3 are short haired with spotting, 3 are long haired with solid colour and 1 is long haired with spotting. The traits are inherited independently, so that new combinations can occur. Average number
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The principle of dominant inheritance discovered by Mendel states that in a heterozygote the dominant allele will cause the recessive allele to be "masked": that is, not expressed in the phenotype. Only if an individual is homozygous with respect to the recessive allele will the recessive trait be
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organisms during meiotic metaphase I, and produces a gamete with a mixture of the organism's chromosomes. The physical basis of the independent assortment of chromosomes is the random orientation of each bivalent chromosome along the metaphase plate with respect to the other bivalent chromosomes.
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of all characteristics that are genetically determined by its alleles as well as by its environment. The presence of an allele does not mean that the trait will be expressed in the individual that possesses it. If the two alleles of an inherited pair differ (the heterozygous condition), then one
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experiments. In his monohybrid crosses, an idealized 3:1 ratio between dominant and recessive phenotypes resulted. In dihybrid crosses, however, he found a 9:3:3:1 ratios. This shows that each of the two alleles is inherited independently from the other, with a 3:1 phenotypic ratio for each.
1275:-generation differ in genotype and phenotype so that the characteristics of the grandparents (P-generation) regularly occur again. In a dominant-recessive inheritance, an average of 25% are homozygous with the dominant trait, 50% are heterozygous showing the dominant trait in the phenotype ( 1332:
In some literature sources, the principle of segregation is cited as the "first law". Nevertheless, Mendel did his crossing experiments with heterozygous plants after obtaining these hybrids by crossing two purebred plants, discovering the principle of dominance and uniformity first.
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Mendel himself warned that care was needed in extrapolating his patterns to other organisms or traits. Indeed, many organisms have traits whose inheritance works differently from the principles he described; these traits are called non-Mendelian.
1314:. But the phenotypic ratio of plants with purple blossoms to those with white blossoms is 3 : 1 due to the dominance of the allele for purple. Plants with homozygous "b b" are white flowered like one of the grandparents in the P-generation. 181: 2396:
Galla, Stephanie J.; Brown, Liz; Couch-Lewis (Ngāi Tahu: Te Hapƫ o Ngāti Wheke, Ngāti Waewae), Yvette; Cubrinovska, Ilina; Eason, Daryl; Gooley, Rebecca M.; Hamilton, Jill A.; Heath, Julie A.; Hauser, Samantha S. (January 2022).
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offspring of Mendel's pea crosses always looked like one of the two parental varieties. In this situation of "complete dominance", the dominant allele had the same phenotypic effect whether present in one or two copies.
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to predict the expression of traits on the basis of mathematical probabilities. An important aspect of Mendel's success can be traced to his decision to start his crosses only with plants he demonstrated were
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showed that if multiple Mendelian factors were involved in the expression of an individual trait, they could produce the diverse results observed, thus demonstrating that Mendelian genetics is compatible with
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he had planted in the garden of his monastery. Between 1856 and 1863, Mendel cultivated and tested some 5,000 pea plants. From these experiments, he induced two generalizations which later became known as
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He also focused on traits determined by a single gene. But some traits, such as height, depend on many genes rather than just one. Traits dependent on multiple genes are called
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the normal complement of 46 chromosomes needs to be halved to 23 to ensure that the resulting haploid gamete can join with another haploid gamete to produce a diploid organism.
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expressed. Therefore, a cross between a homozygous dominant and a homozygous recessive organism yields a heterozygous organism whose phenotype displays only the dominant trait.
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According to customary terminology, the principles of inheritance discovered by Gregor Mendel are here referred to as Mendelian laws, although today's geneticists also speak of
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of one allele compensates the missing expression of the other allele only partially. This results in an intermediate inheritance which was later described by other scientists.
1239:-generation Mendel's principle of uniformity in genotype and phenotype applies as well. Research about intermediate inheritance was done by other scientists. The first was 3012: 1235:. Flowers of heterozygous plants have a phenotype somewhere between the two homozygous genotypes. In cases of intermediate inheritance (incomplete dominance) in the F 1286:
In the pea plant example, the capital "B" represents the dominant allele for purple blossom and lowercase "b" represents the recessive allele for white blossom. The
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Five parts of Mendel's discoveries were an important divergence from the common theories at the time and were the prerequisite for the establishment of his rules.
1325:-generation, but here also the phenotypes show a ratio of 1 : 2 : 1, as the heterozygous are different in phenotype from the homozygous because the 1380:
the alleles—one from the mother one from the father—get passed on to the offspring. An offspring thus receives a pair of alleles for a trait by inheriting
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He then conceived the idea of heredity units, which he called hereditary "factors". Mendel found that there are alternative forms of factors—now called
889:-Generation: The recessive trait from the P-Generation phenotypically reappears in the individuals that are homozygous with the recessive genetic trait. 682:, in contrast to the organ-specific binary characters studied by Mendel. In 1900, however, his work was "re-discovered" by three European scientists, 590: 1068:
Some alleles are dominant while others are recessive; an organism with at least one dominant allele will display the effect of the dominant allele.
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The Law of Segregation of genes applies when two individuals, both heterozygous for a certain trait are crossed, for example, hybrids of the F
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from the parent organisms: one allele for each trait from each parent. Heterozygous individuals with the dominant trait in the phenotype are
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generation with a purple flower to white flower ratio of 3 : 1. In some of the other characters also one of the traits was dominant.
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During gamete formation, the alleles for each gene segregate from each other so that each gamete carries only one allele for each gene.
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gametes (the egg and sperm) to produce a zygote and a new organism, in which every cell has two sets of chromosomes (diploid). During
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pollination, the resulting flower colour was not a blend. Rather than being a mix of the two, the offspring in the first generation (
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Gametes are created by random segregation. Heterozygotic individuals produce gametes with an equal frequency of the two alleles.
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For example 3 pairs of homologous chromosomes allow 8 possible combinations, all equally likely to move into the gamete during
885:-Generation: The dominant allele for purple-red flower hides the phenotypic effect of the recessive allele for white flowers. F 607: 697:
Regardless, the "re-discovery" made Mendelism an important but controversial theory. Its most vigorous promoter in Europe was
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Does not have an adequate section/referral to a page citing published research that contradicts Mendelian inheritance theory.
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Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences
1372:. Every individual organism contains two alleles for each trait. They segregate (separate) during meiosis such that each 1584:
For example, Mendel focused on traits whose genes have only two alleles, such as "A" and "a". However, many genes have
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Mendel hypothesized that allele pairs separate randomly, or segregate, from each other during the production of the
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A Mendelian trait is one whose inheritance follows Mendel's principles—namely, the trait depends only on a single
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for each type of homozygote, whether this was a homozygous dominant genotype, or a homozygous recessive genotype.
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for that gene (and is called a homozygote). An organism that has two different alleles for a gene is said to be
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the recessive trait in the phenotype. The genotypic ratio is 1: 2 : 1, and the phenotypic ratio is 3: 1.
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Genetic characteristics have alternate forms, each inherited from one of two parents. Today these are called
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Mendel's Principles of Heredity - A Defence, with a Translation of Mendel's Original Papers on Hybridisation
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the chromosomes are segregated on the four sperm cells that arise from one mother sperm cell, and during
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Monaghan, Floyd V.; Corcos, Alain F. (1987). "Tschermak: A non-discoverer of Mendelism II. A critique".
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Form of the ripe pods (simply inflated, not contracted, or constricted between the seeds and wrinkled)
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generation: All individuals have the same genotype and same phenotype expressing the dominant trait (
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When he crossed purebred white flower and purple flower pea plants (the parental or P generation) by
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Mielewczik, Michael; Moll-Mielewczik, Janine; Simunek, Michal V.; Hossfeld, Uwe (1 September 2022).
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gave credibility to his data. He had the foresight to follow several successive generations (P, F
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The monk in the garden : the lost and found genius of Gregor Mendel, the father of genetics
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The Mendelian Revolution: The Emergence of Hereditarian Concepts in Modern Science and Society
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In the genotype 25 % are homozygous with the dominant trait, 50 % are heterozygous
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The Mendelian Dioskuri. Correspondence of Armin with Erich von Tschermak-Seysenegg, 1898-1951
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who formulated his ideas after conducting simple hybridization experiments with pea plants
3214: 3194: 3069: 3027: 2382: 1981: 1915: 1675: 1647: 1503: 1385: 1357: 1280: 1276: 1120: 1116: 958: 698: 565: 2855:"The evolution of recombination rates in finite populations during ecological speciation" 1828: 1302:-plants in the Punnett-square, three combinations are possible. The genotypic ratio is 1 2921: 2810:
Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
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Ulrich Weber: Biologie Gesamtband Oberstufe, 1st edition, Cornelsen Verlag Berlin 2001,
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Please expand the article to include this information. Further details may exist on the
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Genes of different traits can segregate independently during the formation of gametes.
743: 732: 675: 438: 363: 1438:). P-Generation: Each parent possesses one dominant and one recessive trait purebred ( 1336:
Molecular proof of segregation of genes was subsequently found through observation of
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of the recessive trait, 25 % are homozygous with the recessive genetic trait and
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were thought to hold the actual hereditary material, and created what is now known as
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Stapley, J.; Feulner, P. G.; Johnston, S. E.; Santure, A. W.; Smadja, C. M. (2017).
1801: 1039:; the other has no noticeable effect on the organism's appearance and is called the 3235: 3153: 2155:"XV.—The Correlation between Relatives on the Supposition of Mendelian Inheritance" 1518: 1353: 1240: 989: 840:
One allele is dominant over the other. The phenotype reflects the dominant allele.
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Different traits have independent assortment. In modern terms, genes are unlinked.
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generation are heterozygous at both loci and only show the dominant phenotypes (
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the phenotypes of the two parental varieties. A cross between two four o'clock (
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Earth and Environmental Science Transactions of the Royal Society of Edinburgh
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There are many deviations from the principle of independent assortment due to
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carries only one allele for each inherited trait. When sperm and egg unite at
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to the initial true-breeding lines) to reveal the presence and proportions of
752: 728: 358: 272: 252: 227: 2335: 2275: 2193:"Gregor Mendel and the Principles of Inheritance | Learn Science at Scitable" 2101: 2062: 1954: 1765: 1999:. Pavel Mervart & Institute of Contemporary History of the AcSc Prague. 1930: 1361: 1356:. Paternal and maternal chromosomes get separated in meiosis because during 1287: 1187: 1113:
generation: The phenotypes in the second generation show a 3 : 1 ratio.
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The principles of Mendelian inheritance were named for and first derived by
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Mendel selected for the experiment the following characters of pea plants:
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significance was the importance attached by 19th-century biologists to the
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Verhandlungen des Naturforschenden Vereines in BrĂŒnn. Bd. IV. 1866, page 8
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and his assistants later integrated Mendel's theoretical model with the
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Form of the ripe seeds (round or roundish, surface shallow or wrinkled)
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The Genetical Theory of Natural Selection: A Complete Variorum Edition
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Reeve, James; Ortiz-Barrientos, Daniel; EngelstÀdter, Jan (2016).
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When the parents are homozygous for two different genetic traits (
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of an individual is made up of the many alleles it possesses. The
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in the overall appearance of the progeny, now known to be due to
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on 8 February and 8 March 1865, and which was published in 1866.
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contains only one of the alleles. When the gametes unite in the
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Characters are unitary, that is, they are discrete e.g.: purple
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Segregation and independent assortment are consistent with the
830:. dwarf. There is no medium-sized plant or light purple flower. 1012: 237: 232: 121: 79: 38: 3103: 2399:"The relevance of pedigrees in the conservation genomics era" 1279:), 25% are homozygous with the recessive trait and therefore 1007:). Because allele pairs separate during gamete production, a 2683: 2681: 1742:"Mendelian controversies: a botanical and historical review" 1513:
human cell, half are maternally derived (from the mother's
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If two parents are mated with each other who differ in one
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are examples for intermediate inheritance. As seen in the F
2223:"Basic Principles of Genetics: Probability of Inheritance" 1231:) plants shows an exception to Mendel's principle, called 1178:(each pure-bred), all offspring in the first generation (F 1707:
Richard Dawkins: How A Scientist Changed the Way We Think
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Mendel's findings allowed scientists such as Fisher and
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Proceedings of the Royal Society B: Biological Sciences
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determines the organism's appearance and is called the
862:. The laws were initially formulated by the geneticist 662:), that he presented to the Natural History Society of 957:) were all purple-flowered. Therefore, he called this 2573: 2571: 2086:"Is Evolution a Continuous or Discontinuous Process?" 1931:""Versuche ĂŒber Pflanzen-Hybriden" — neue Einsichten" 1517:) and half are paternally derived (from the father's 1442:). In this example, solid coat color is indicated by 1340:
by two scientists independently, the German botanist
2598:: Biologie. Spektrum-Verlag Heidelberg-Berlin 2003, 1806:. Internet Archive. Boston : Houghton Mifflin. 1321:
the same segregation of alleles takes place in the F
652:. He described his experiments in a two-part paper, 3269: 3223: 3177: 3141: 2806:"Recombination: The good, the bad and the variable" 2043:
Cold Spring Harbor Symposia on Quantitative Biology
2032: 2030: 1050: 731:theory of inheritance, in which the chromosomes of 32:For a non-technical introduction to the topic, see 2245: 2243: 1740:Fairbanks, Daniel J.; Rytting, Bryce (May 2001). 2973:"Beyond the simplicity of Mendelian inheritance" 2694:: Biologie. Spektrum-Verlag 2003, page 293-315. 1735: 1733: 1731: 552:following the principles originally proposed by 2305: 2303: 2301: 709:" to describe many of its tenets. The model of 2709: 2707: 2355: 2353: 2121: 2119: 1457:(recessive), while fur length is indicated by 1182:) are equal to the examined characteristic in 992:for that gene (and is called a heterozygote). 969:-generation, he obtained both colours in the F 873:Characteristics Mendel used in his experiments 3119: 2126:Fisher, Sir Ronald Aylmer (21 October 1999). 519: 8: 2904:Hickey, Donal A.; Golding, G. Brian (2018). 2252:"William Johannsen and the Genotype Concept" 1795: 1793: 1791: 1364:the chromosomes are distributed between the 1259:for one of Mendel's pea plant experiments – 755:. His method of data analysis and his large 938:Position of the flowers (axial or terminal) 935:Colour of the unripe pods (yellow or green) 556:in 1865 and 1866, re-discovered in 1900 by 73:Learn how and when to remove these messages 3126: 3112: 3104: 3048:Reece, Jane B.; Campbell, Neil A. (2011). 2217: 2215: 2213: 2037:Goldschmidt, Richard B. (1 January 1951). 526: 512: 193: 139:about a succinct statement of the theorem. 2988: 2929: 2880: 2870: 2829: 2430: 1243:with his studies about Mirabilis jalapa. 591:The Genetical Theory of Natural Selection 168:Learn how and when to remove this message 95:needs attention from an expert in biology 2958:National Human Genome Research Institute 584:combined these ideas with the theory of 3292:Suppressed research in the Soviet Union 3246:Inheritance of acquired characteristics 2646:UniformitĂ€tsregel (1. Mendelsche Regel) 2634:UniformitĂ€tsregel (1. Mendelsche Regel) 1827:Mendel, Gregor; Mendel, Gregor (1866). 1668: 1143:-generation, heterozygous plants have " 201: 3065: 3055: 3013:Variations on Mendel's laws (overview) 2378: 2367: 2360:Miller, Christine (1 September 2020). 2012: 1911: 1900: 1845:"Mendel's Paper (English - Annotated)" 105:may be able to help recruit an expert. 1982:10.1093/oxfordjournals.jhered.a110361 1348:in 1883. Most alleles are located in 7: 3282:Collectivization in the Soviet Union 2632:Biologie Schule - kompaktes Wissen: 2482:Marks, Jonarhan (22 December 2008). 2484:"The Construction of Mendel's Laws" 1995:Simunek, Michal V. (January 2011). 1637:Simple Mendelian genetics in humans 1344:in 1876, and the Belgian zoologist 1271:-generation. The offspring in the F 1217:But for some characteristics, the F 1198:applies to all individuals of the F 1155:-generation shows a 1:2:1 ratio of 1046: 929:Flower colour (white or violet-red) 813: 3094:Mendel's principles of Inheritance 2714:Bailey, Regina (5 November 2015). 2547:Experiments in Plant Hybridization 2456:Mendel's principles of inheritance 2310:Edwards, A. W. F. (1 March 2012). 1632:List of Mendelian traits in humans 1509:Of the 46 chromosomes in a normal 659:Experiments on Plant Hybridization 602:footing and forming the basis for 25: 3034:. Johns Hopkins University Press. 2256:Journal of the History of Biology 1833:. BrĂŒnn: Im Verlage des Vereines. 1684:Cambridge University Press 2009, 1490:Independent assortment occurs in 1190:showing the dominant trait. This 576:in 1915, they became the core of 54:This article has multiple issues. 2470:Mendelian Genetics - An overview 2250:Churchill, Frederick B. (1974). 1871:"Versuche ĂŒber Pflanzenhybriden" 1616: 1602: 1402:chromosome theory of inheritance 1065:Law of dominance and uniformity 493: 492: 379: 378: 209: 126: 84: 43: 2740:Spectrum Dictionary of Biology 2577:Biology University of Hamburg: 1830:Versuche ĂŒber Pflanzen-Hybriden 1562:Many traits are inherited in a 1091:Law of Dominance and Uniformity 654:Versuche ĂŒber Pflanzen-Hybriden 646:Mendel's Principles of Heredity 570:Boveri–Sutton chromosome theory 62:or discuss these issues on the 2910:Journal of Theoretical Biology 2515:Versuche ĂŒber Pflanzenhybriden 1081:Law of independent assortment 27:Type of biological inheritance 1: 2716:"Mendel's Law of Segregation" 2019:: CS1 maint: date and year ( 1800:Henig, Robin Marantz (2000). 1392:Law of Independent Assortment 1052:Mendel's laws of inheritance 608:modern evolutionary synthesis 2362:"5.13 Mendelian Inheritance" 1047:Mendel's laws of inheritance 814:Mendel's genetic discoveries 3084:Khan Academy, video lecture 2971:Schacherer, Joseph (2016). 2328:10.1016/j.shpsc.2011.11.011 2084:Sumner, Francis B. (1929). 2055:10.1101/SQB.1951.016.01.003 1879:10.1007/978-3-663-19714-0_4 1525:involves the fusion of two 1470:ratio of phenotypes 9:3:3:1 1247:Law of Segregation of genes 1221:hybrids have an appearance 775:descendants of the initial 564:, and later popularized by 97:. The specific problem is: 3339: 3089:Probability of Inheritance 2990:10.1016/j.crvi.2016.04.006 2931:10.1016/j.jtbi.2018.01.018 1746:American Journal of Botany 1573: 1427:), their children in the F 961:dominant. When he allowed 714:and statisticians such as 617: 31: 3297:Politicization of science 3041:Genetics: The life of DNA 2488:Evolutionary Anthropology 2171:10.1017/S0080456800012163 1947:10.1007/s12268-022-1820-8 1610:History of Science portal 1576:Non-Mendelian inheritance 1570:Non-Mendelian inheritance 860:Non-Mendelian inheritance 3050:Mendel and the Gene Idea 2977:Comptes Rendus Biologies 2757:"Independent Assortment" 1388:of the recessive trait. 1174:for which they are both 1123:the recessive character. 1003:) and the pollen plant ( 965:in the uniform looking F 701:, who coined the terms " 34:Introduction to genetics 3277:Bourgeois pseudoscience 2659:UnvollstĂ€ndige Dominanz 2039:"Chromosomes and Genes" 1869:Mendel, Gregor (1970), 1704:; Ridley, Mark (2006). 1653:Particulate inheritance 680:multi-gene interactions 628:, a nineteenth-century 2872:10.1098/rspb.2016.1243 2822:10.1098/rstb.2017.0279 2453:Science Learning Hub: 2377:Cite journal requires 2153:Fisher, R. A. (1919). 2090:The Scientific Monthly 1586:more than two alleles. 1483: 1471: 1405: 1382:homologous chromosomes 1264: 1172:genetic characteristic 1167: 1124: 901: 890: 874: 191: 137:is missing information 3256:Mendelian inheritance 2673:IntermediĂ€rer Erbgang 1477: 1461:(short, dominant) or 1411: 1399: 1254: 1130: 1098: 1030:is the result of the 896: 880: 872: 676:many inherited traits 650:Mendelian inheritance 539:Mendelian inheritance 479:Personalized medicine 473:Personalized medicine 336:Quantitative genetics 331:Mendelian inheritance 183: 2564:Mendelian Principles 1319:incomplete dominance 1263:of the F1 generation 1233:incomplete dominance 1151:" and "white". The F 1147:" flowers—a mix of " 856:Mendelian principles 753:statistical analysis 626:Gregor Johann Mendel 399:Branches of genetics 3190:Georgii Karpechenko 2954:"Genetic Disorders" 2922:2018JThBi.442..123H 2670:Spektrum Biologie: 2656:Spektrum Biologie: 2415:2022MolEc..31...41G 1970:Journal of Heredity 1644:(monogenic disease) 1523:sexual reproduction 1346:Edouard Van Beneden 1073:Law of segregation 1053: 999:in the seed plant ( 941:Length of the stem 692:Erich von Tschermak 620:History of genetics 604:population genetics 369:Genetic engineering 326:Population genetics 197:Part of a series on 103:WikiProject Biology 3318:Classical genetics 3099:Mendelian genetics 2644:Frustfrei Lernen: 2580:Mendelian Genetics 2500:10.1002/evan.20192 2312:"Punnett's square" 2268:10.1007/BF00179291 1642:Mendelian diseases 1521:). This occurs as 1484: 1472: 1406: 1327:genetic expression 1265: 1261:self-fertilization 1168: 1125: 1051: 963:self-fertilization 902: 891: 881:P-Generation and F 875: 864:Thomas Hunt Morgan 737:classical genetics 725:Thomas Hunt Morgan 578:classical genetics 574:Thomas Hunt Morgan 572:of inheritance by 341:Molecular genetics 300:History and topics 192: 18:Law of segregation 3305: 3304: 3287:Pavlovian session 3159:Nikita Khrushchev 2623:, page 170 - 171. 2423:10.1111/mec.16192 2403:Molecular Ecology 2139:978-0-19-850440-5 2006:978-80-87378-67-0 1910:Missing or empty 1888:978-3-663-19714-0 1849:www.mendelweb.org 1813:978-0-395-97765-1 1721:978-0-19-929116-8 1690:978-1-108-00613-2 1137:Antirrhinum majus 1088: 1087: 926:(yellow or green) 787:Inheritance tools 721:natural selection 672:apparent blending 588:in his 1930 book 586:natural selection 536: 535: 263:Genetic variation 178: 177: 170: 160: 159: 120: 119: 77: 16:(Redirected from 3330: 3128: 3121: 3114: 3105: 3073: 3067: 3063: 3061: 3053: 3044: 3035: 3028:Bowler, Peter J. 3015: 3009: 3003: 3002: 2992: 2983:(7–8): 284–288. 2968: 2962: 2961: 2950: 2944: 2943: 2933: 2901: 2895: 2894: 2884: 2874: 2850: 2844: 2843: 2833: 2801: 2795: 2794: 2792: 2790: 2779: 2773: 2772: 2770: 2768: 2755:Bailey, Regina. 2752: 2746: 2738: 2732: 2731: 2729: 2727: 2711: 2702: 2688:Neil A. Campbell 2685: 2676: 2668: 2662: 2654: 2648: 2642: 2636: 2630: 2624: 2613: 2607: 2592:Neil A. Campbell 2589: 2583: 2575: 2566: 2560: 2551: 2539: 2533: 2525: 2519: 2510: 2504: 2503: 2479: 2473: 2465: 2459: 2451: 2445: 2444: 2434: 2393: 2387: 2386: 2380: 2375: 2373: 2365: 2357: 2348: 2347: 2307: 2296: 2295: 2247: 2238: 2237: 2235: 2233: 2219: 2208: 2207: 2205: 2203: 2189: 2183: 2182: 2150: 2144: 2143: 2123: 2114: 2113: 2081: 2075: 2074: 2034: 2025: 2024: 2018: 2010: 1992: 1986: 1985: 1965: 1959: 1958: 1926: 1920: 1919: 1913: 1908: 1906: 1898: 1897: 1895: 1866: 1860: 1859: 1857: 1855: 1841: 1835: 1834: 1824: 1818: 1817: 1797: 1786: 1785: 1737: 1726: 1725: 1698: 1692: 1673: 1626: 1621: 1620: 1612: 1607: 1606: 1605: 1590:polygenic traits 1448:Piebald spotting 1386:genetic carriers 1294:plant are both F 1277:genetic carriers 1228:Mirabilis jalapa 1196:reciprocity rule 1166: 1162: 1158: 1150: 1146: 1133:Mirabilis jalapa 1117:genetic carriers 1106: 1054: 1041:recessive allele 959:biological trait 528: 521: 514: 501: 496: 495: 391:Medical genetics 387: 382: 381: 213: 194: 173: 166: 155: 152: 146: 130: 122: 115: 112: 106: 88: 87: 80: 69: 47: 46: 39: 21: 3338: 3337: 3333: 3332: 3331: 3329: 3328: 3327: 3308: 3307: 3306: 3301: 3270:Soviet policies 3265: 3219: 3215:Nikolai Vavilov 3195:Zhores Medvedev 3185:WacƂaw Gajewski 3173: 3137: 3132: 3080: 3064: 3054: 3047: 3043:. ANDRNA press. 3038: 3026: 3023: 3018: 3010: 3006: 2970: 2969: 2965: 2952: 2951: 2947: 2903: 2902: 2898: 2852: 2851: 2847: 2803: 2802: 2798: 2788: 2786: 2781: 2780: 2776: 2766: 2764: 2754: 2753: 2749: 2739: 2735: 2725: 2723: 2720:about education 2713: 2712: 2705: 2686: 2679: 2669: 2665: 2655: 2651: 2643: 2639: 2631: 2627: 2614: 2610: 2606:, page 302–303. 2590: 2586: 2576: 2569: 2561: 2554: 2540: 2536: 2530:Mendel's Impact 2526: 2522: 2512:Gregor Mendel: 2511: 2507: 2481: 2480: 2476: 2466: 2462: 2452: 2448: 2395: 2394: 2390: 2376: 2366: 2359: 2358: 2351: 2309: 2308: 2299: 2249: 2248: 2241: 2231: 2229: 2227:www.palomar.edu 2221: 2220: 2211: 2201: 2199: 2191: 2190: 2186: 2152: 2151: 2147: 2140: 2125: 2124: 2117: 2083: 2082: 2078: 2036: 2035: 2028: 2011: 2007: 1994: 1993: 1989: 1967: 1966: 1962: 1928: 1927: 1923: 1909: 1899: 1893: 1891: 1889: 1868: 1867: 1863: 1853: 1851: 1843: 1842: 1838: 1826: 1825: 1821: 1814: 1799: 1798: 1789: 1758:10.2307/2657027 1739: 1738: 1729: 1722: 1700: 1699: 1695: 1676:William Bateson 1674: 1670: 1666: 1648:Mendelian error 1622: 1615: 1608: 1603: 1601: 1598: 1578: 1572: 1559:or recessive. 1545: 1543:Mendelian trait 1504:genetic linkage 1468: 1455: 1436: 1430: 1425: 1421: 1394: 1358:spermatogenesis 1324: 1301: 1297: 1274: 1270: 1249: 1238: 1220: 1212: 1201: 1192:uniformity rule 1181: 1164: 1160: 1156: 1154: 1148: 1144: 1142: 1114: 1112: 1108: 1104: 1102: 1093: 1049: 1037:dominant allele 972: 968: 954: 888: 884: 852:Mendelian rules 816: 807: 794: 792:Punnett Squares 789: 770: 766: 762: 699:William Bateson 622: 616: 566:William Bateson 545:) is a type of 541:(also known as 532: 491: 484: 483: 474: 466: 465: 464: 463: 412: 404: 403: 395: 373: 354: 346: 345: 301: 293: 292: 279: 278: 277: 221: 174: 163: 162: 161: 156: 150: 147: 140: 131: 116: 110: 107: 101: 89: 85: 48: 44: 37: 28: 23: 22: 15: 12: 11: 5: 3336: 3334: 3326: 3325: 3320: 3310: 3309: 3303: 3302: 3300: 3299: 3294: 3289: 3284: 3279: 3273: 3271: 3267: 3266: 3264: 3263: 3258: 3253: 3248: 3243: 3238: 3233: 3227: 3225: 3221: 3220: 3218: 3217: 3212: 3207: 3202: 3200:Georgii Nadson 3197: 3192: 3187: 3181: 3179: 3175: 3174: 3172: 3171: 3166: 3161: 3156: 3151: 3149:Trofim Lysenko 3145: 3143: 3139: 3138: 3133: 3131: 3130: 3123: 3116: 3108: 3102: 3101: 3096: 3091: 3086: 3079: 3078:External links 3076: 3075: 3074: 3045: 3036: 3022: 3019: 3017: 3016: 3011:Khan Academy: 3004: 2963: 2960:. 18 May 2018. 2945: 2896: 2845: 2796: 2782:Perez, Nancy. 2774: 2747: 2733: 2703: 2677: 2663: 2649: 2637: 2625: 2608: 2584: 2567: 2552: 2534: 2520: 2505: 2494:(6): 250–253. 2474: 2460: 2446: 2388: 2379:|journal= 2349: 2322:(1): 219–224. 2297: 2239: 2209: 2197:www.nature.com 2184: 2165:(2): 399–433. 2145: 2138: 2132:. OUP Oxford. 2115: 2076: 2026: 2005: 1987: 1976:(3): 208–210. 1960: 1921: 1887: 1861: 1836: 1819: 1812: 1787: 1752:(5): 737–752. 1727: 1720: 1693: 1667: 1665: 1662: 1661: 1660: 1658:Punnett square 1655: 1650: 1645: 1639: 1634: 1628: 1627: 1624:Biology portal 1613: 1597: 1594: 1574:Main article: 1571: 1568: 1544: 1541: 1466: 1453: 1434: 1428: 1423: 1419: 1393: 1390: 1322: 1299: 1295: 1290:plant and the 1272: 1268: 1257:Punnett square 1248: 1245: 1236: 1218: 1210: 1199: 1179: 1152: 1140: 1110: 1100: 1092: 1089: 1086: 1085: 1082: 1078: 1077: 1074: 1070: 1069: 1066: 1062: 1061: 1058: 1048: 1045: 970: 966: 952: 943: 942: 939: 936: 933: 930: 927: 918:Colour of the 916: 911:Colour of the 909: 886: 882: 848: 847: 844: 841: 838: 831: 826:. white, tall 815: 812: 806: 803: 793: 790: 788: 785: 768: 764: 760: 744:J.B.S. Haldane 618:Main article: 615: 612: 534: 533: 531: 530: 523: 516: 508: 505: 504: 503: 502: 486: 485: 482: 481: 475: 472: 471: 468: 467: 462: 461: 456: 451: 446: 441: 439:Immunogenetics 436: 431: 426: 421: 415: 414: 413: 410: 409: 406: 405: 402: 401: 394: 393: 388: 371: 366: 364:DNA sequencing 361: 355: 352: 351: 348: 347: 344: 343: 338: 333: 328: 323: 313: 308: 302: 299: 298: 295: 294: 291: 290: 285: 276: 275: 270: 265: 260: 255: 250: 245: 240: 235: 230: 224: 223: 222: 220:Key components 219: 218: 215: 214: 206: 205: 199: 198: 176: 175: 158: 157: 151:September 2024 134: 132: 125: 118: 117: 92: 90: 83: 78: 52: 51: 49: 42: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3335: 3324: 3323:Gregor Mendel 3321: 3319: 3316: 3315: 3313: 3298: 3295: 3293: 3290: 3288: 3285: 3283: 3280: 3278: 3275: 3274: 3272: 3268: 3262: 3261:Vernalization 3259: 3257: 3254: 3252: 3249: 3247: 3244: 3242: 3241:Hybridization 3239: 3237: 3234: 3232: 3229: 3228: 3226: 3222: 3216: 3213: 3211: 3208: 3206: 3203: 3201: 3198: 3196: 3193: 3191: 3188: 3186: 3183: 3182: 3180: 3176: 3170: 3167: 3165: 3164:Joseph Stalin 3162: 3160: 3157: 3155: 3152: 3150: 3147: 3146: 3144: 3140: 3136: 3129: 3124: 3122: 3117: 3115: 3110: 3109: 3106: 3100: 3097: 3095: 3092: 3090: 3087: 3085: 3082: 3081: 3077: 3071: 3059: 3051: 3046: 3042: 3039:Atics, Jean. 3037: 3033: 3029: 3025: 3024: 3020: 3014: 3008: 3005: 3000: 2996: 2991: 2986: 2982: 2978: 2974: 2967: 2964: 2959: 2955: 2949: 2946: 2941: 2937: 2932: 2927: 2923: 2919: 2915: 2911: 2907: 2900: 2897: 2892: 2888: 2883: 2878: 2873: 2868: 2864: 2860: 2856: 2849: 2846: 2841: 2837: 2832: 2827: 2823: 2819: 2815: 2811: 2807: 2800: 2797: 2785: 2778: 2775: 2762: 2758: 2751: 2748: 2745: 2744: 2737: 2734: 2721: 2717: 2710: 2708: 2704: 2701: 2700:3-8274-1352-4 2697: 2693: 2692:Jane B. Reece 2689: 2684: 2682: 2678: 2675: 2674: 2667: 2664: 2661: 2660: 2653: 2650: 2647: 2641: 2638: 2635: 2629: 2626: 2622: 2621:3-464-04279-0 2618: 2612: 2609: 2605: 2604:3-8274-1352-4 2601: 2597: 2596:Jane B. Reece 2593: 2588: 2585: 2582: 2581: 2574: 2572: 2568: 2565: 2559: 2557: 2553: 2549: 2548: 2543: 2542:Gregor Mendel 2538: 2535: 2532: 2531: 2524: 2521: 2517: 2516: 2509: 2506: 2501: 2497: 2493: 2489: 2485: 2478: 2475: 2472: 2471: 2467:Noel Clarke: 2464: 2461: 2458: 2457: 2450: 2447: 2442: 2438: 2433: 2428: 2424: 2420: 2416: 2412: 2408: 2404: 2400: 2392: 2389: 2384: 2371: 2363: 2356: 2354: 2350: 2345: 2341: 2337: 2333: 2329: 2325: 2321: 2317: 2313: 2306: 2304: 2302: 2298: 2293: 2289: 2285: 2281: 2277: 2273: 2269: 2265: 2261: 2257: 2253: 2246: 2244: 2240: 2228: 2224: 2218: 2216: 2214: 2210: 2198: 2194: 2188: 2185: 2180: 2176: 2172: 2168: 2164: 2160: 2156: 2149: 2146: 2141: 2135: 2131: 2130: 2122: 2120: 2116: 2111: 2107: 2103: 2099: 2095: 2091: 2087: 2080: 2077: 2072: 2068: 2064: 2060: 2056: 2052: 2048: 2044: 2040: 2033: 2031: 2027: 2022: 2016: 2008: 2002: 1998: 1991: 1988: 1983: 1979: 1975: 1971: 1964: 1961: 1956: 1952: 1948: 1944: 1940: 1937:(in German). 1936: 1932: 1925: 1922: 1917: 1904: 1890: 1884: 1880: 1876: 1872: 1865: 1862: 1850: 1846: 1840: 1837: 1832: 1831: 1823: 1820: 1815: 1809: 1805: 1804: 1796: 1794: 1792: 1788: 1783: 1779: 1775: 1771: 1767: 1763: 1759: 1755: 1751: 1747: 1743: 1736: 1734: 1732: 1728: 1723: 1717: 1713: 1709: 1708: 1703: 1697: 1694: 1691: 1687: 1683: 1682: 1677: 1672: 1669: 1663: 1659: 1656: 1654: 1651: 1649: 1646: 1643: 1640: 1638: 1635: 1633: 1630: 1629: 1625: 1619: 1614: 1611: 1600: 1595: 1593: 1591: 1587: 1582: 1577: 1569: 1567: 1565: 1564:non-Mendelian 1560: 1558: 1554: 1550: 1542: 1540: 1538: 1534: 1532: 1531:gametogenesis 1528: 1524: 1520: 1516: 1512: 1507: 1505: 1500: 1498: 1497:crossing over 1493: 1488: 1481: 1476: 1464: 1460: 1456: 1449: 1445: 1441: 1437: 1426: 1415: 1410: 1403: 1398: 1391: 1389: 1387: 1383: 1379: 1375: 1371: 1367: 1363: 1359: 1355: 1351: 1347: 1343: 1342:Oscar Hertwig 1339: 1334: 1330: 1328: 1320: 1315: 1313: 1309: 1305: 1293: 1289: 1284: 1282: 1278: 1262: 1258: 1253: 1246: 1244: 1242: 1234: 1230: 1229: 1224: 1215: 1207: 1203: 1202:-generation. 1197: 1193: 1189: 1185: 1177: 1173: 1138: 1134: 1129: 1122: 1118: 1097: 1090: 1083: 1080: 1079: 1075: 1072: 1071: 1067: 1064: 1063: 1059: 1056: 1055: 1044: 1042: 1038: 1033: 1029: 1025: 1020: 1018: 1017:fertilization 1014: 1010: 1006: 1002: 998: 993: 991: 987: 983: 979: 974: 964: 960: 956: 948: 940: 937: 934: 931: 928: 925: 921: 917: 914: 910: 907: 906: 905: 899: 895: 879: 871: 867: 865: 861: 857: 853: 845: 842: 839: 836: 832: 829: 825: 821: 820: 819: 811: 804: 802: 798: 791: 786: 784: 782: 778: 777:hybridization 774: 758: 754: 750: 749:true-breeding 745: 740: 738: 734: 730: 726: 722: 717: 716:Ronald Fisher 712: 708: 704: 700: 695: 693: 689: 685: 684:Hugo de Vries 681: 677: 673: 667: 665: 661: 660: 655: 651: 647: 642: 640: 639:Pisum sativum 634: 631: 627: 621: 613: 611: 609: 605: 601: 597: 593: 592: 587: 583: 582:Ronald Fisher 579: 575: 571: 567: 563: 559: 558:Hugo de Vries 555: 554:Gregor Mendel 551: 548: 544: 540: 529: 524: 522: 517: 515: 510: 509: 507: 506: 500: 490: 489: 488: 487: 480: 477: 476: 470: 469: 460: 457: 455: 452: 450: 447: 445: 442: 440: 437: 435: 432: 430: 427: 425: 422: 420: 417: 416: 408: 407: 400: 397: 396: 392: 389: 385: 376: 372: 370: 367: 365: 362: 360: 357: 356: 350: 349: 342: 339: 337: 334: 332: 329: 327: 324: 321: 317: 314: 312: 309: 307: 304: 303: 297: 296: 289: 286: 284: 281: 280: 274: 271: 269: 266: 264: 261: 259: 256: 254: 251: 249: 246: 244: 241: 239: 236: 234: 231: 229: 226: 225: 217: 216: 212: 208: 207: 204: 200: 196: 195: 190: 186: 185:Gregor Mendel 182: 172: 169: 154: 144: 138: 135:This article 133: 129: 124: 123: 114: 104: 100: 96: 93:This article 91: 82: 81: 76: 74: 67: 66: 61: 60: 55: 50: 41: 40: 35: 30: 19: 3255: 3236:Heritability 3154:J. D. Bernal 3049: 3040: 3031: 3007: 2980: 2976: 2966: 2957: 2948: 2913: 2909: 2899: 2862: 2858: 2848: 2813: 2809: 2799: 2787:. Retrieved 2777: 2765:. Retrieved 2760: 2750: 2743:Mendel Rules 2741: 2736: 2724:. Retrieved 2719: 2671: 2666: 2657: 2652: 2640: 2628: 2611: 2587: 2578: 2550:1965, page 5 2545: 2537: 2528: 2527:Write Work: 2523: 2513: 2508: 2491: 2487: 2477: 2468: 2463: 2454: 2449: 2409:(1): 41–54. 2406: 2402: 2391: 2370:cite journal 2319: 2315: 2259: 2255: 2230:. Retrieved 2226: 2200:. Retrieved 2196: 2187: 2162: 2158: 2148: 2128: 2096:(1): 72–78. 2093: 2089: 2079: 2046: 2042: 1996: 1990: 1973: 1969: 1963: 1938: 1934: 1924: 1912:|title= 1892:, retrieved 1864: 1852:. 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Index

Law of segregation
Introduction to genetics
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WikiProject Biology

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Gregor Mendel
genetics
Genetics

Chromosome
DNA
RNA
Genome
Heredity
Nucleotide
Mutation
Genetic variation
Allele
Amino acid
Outline
Index
Introduction
History
Evolution
molecular

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