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Self-replication

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176:) dissociated into single-stranded polynucleotides and each of these acted as a template for synthesis of a complementary strand producing two double stranded copies. In a system such as this, individual duplex replicators with different nucleotide sequences could compete with each other for available mononucleotide resources, thus initiating natural selection for the most “fit” sequences. Replication of these early forms of life was likely highly inaccurate producing mutations that influenced the folding state of the polynucleotides, thus affecting the propensities for strand association (promoting stability) and disassociation (allowing genome replication). The evolution of order in living systems has been proposed to be an example of a fundamental order generating principle that also applies to physical systems. 388: 425:
boundary into the crystalline form. Crystals may have irregularities where the regular atomic structure is broken, and when crystals grow, these irregularities may propagate, creating a form of self-replication of crystal irregularities. Because these irregularities may affect the probability of a crystal breaking apart to form new crystals, crystals with such irregularities could even be considered to undergo evolutionary development.
39: 599: 437:, a material device that can self-replicate. The usual reason is to achieve a low cost per item while retaining the utility of a manufactured good. Many authorities say that in the limit, the cost of self-replicating items should approach the cost-per-weight of wood or other biological substances, because self-replication avoids the costs of 153:
linked together (through base pairing) in a certain order following a template of four already-linked sequences, by changing the temperature up and down. The number of template copies is thus increased in each cycle. No external agent such as an enzyme is needed, but the system must be supplied with a reservoir of the sixteen DNA sequences.
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is possible or not. Many authorities who find it impossible are clearly citing sources for complex autotrophic self-replicating systems. Many of the authorities who find it possible are clearly citing sources for much simpler self-assembling systems, which have been demonstrated. In the meantime,
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crystals. Clay consists of a large number of small crystals, and clay is an environment that promotes crystal growth. Crystals consist of a regular lattice of atoms and are able to grow if e.g. placed in a water solution containing the crystal components; automatically arranging atoms at the crystal
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In 2011, New York University scientists have developed artificial structures that can self-replicate, a process that has the potential to yield new types of materials. They have demonstrated that it is possible to replicate not just molecules like cellular DNA or RNA, but discrete structures that
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in an "environment" that is a solution of RNA monomers and transcriptase, but such systems are more accurately characterized as "assisted replication" than "self-replication". In 2021 researchers succeeded in constructing a system with sixteen specially designed DNA sequences. Four of these can be
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has identified 137 design dimensions grouped into a dozen separate categories, including: (1) Replication Control, (2) Replication Information, (3) Replication Substrate, (4) Replicator Structure, (5) Passive Parts, (6) Active Subunits, (7) Replicator Energetics, (8) Replicator Kinematics, (9)
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A more trivial approach is to write a program that will make a copy of any stream of data that it is directed to, and then direct it at itself. In this case the program is treated as both executable code, and as data to be manipulated. This approach is common in most self-replicating systems,
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self-replicating machine could cover a moon or planet with solar cells, and beam the power to the Earth using microwaves. Once in place, the same machinery that built itself could also produce raw materials or manufactured objects, including transportation systems to ship the products.
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An activity in the field of robots is the self-replication of machines. Since all robots (at least in modern times) have a fair number of the same features, a self-replicating robot (or possibly a hive of robots) would need to do the following:
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These systems are substantially simpler than autotrophic systems, because they are provided with purified feedstocks and energy. They do not have to reproduce them. This distinction is at the root of some of the controversy about whether
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In general, since these systems are autotrophic, they are the most difficult and complex known replicators. They are also thought to be the most hazardous, because they do not require any inputs from human beings in order to reproduce.
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has published guidelines for researchers in mechanical self-replication. The guidelines recommend that researchers use several specific techniques for preventing mechanical replicators from getting out of control, such as using a
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Given the currently keen interest in biotechnology and the high levels of funding in that field, attempts to exploit the replicative ability of existing cells are timely, and may easily lead to significant insights and advances.
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replicators can reproduce themselves "in the wild". They mine their own materials. It is conjectured that non-biological autotrophic replicators could be designed by humans, and could easily accept specifications for human
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where he proposed a cognitive equivalent of the gene; a unit of behavior which is copied from one host mind to another through observation. Memes can only propagate via animal behavior and are thus analogous to information
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A speculative, more complex "chip factory" was specified to produce the computer and electronic systems, but the designers also said that it might prove practical to ship the chips from Earth as if they were "vitamins".
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Space resources: NASA has sponsored a number of design studies to develop self-replicating mechanisms to mine space resources. Most of these designs include computer-controlled machinery that copies itself.
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In many programming languages an empty program is legal, and executes without producing errors or other output. The output is thus the same as the source code, so the program is trivially self-reproducing.
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Bernstein, Harris; Byerly, Henry C.; Hopf, Frederick A.; et al. (June 1983). "The Darwinian Dynamic". The Quarterly Review of Biology. 58 (2): 185–207. doi:10.1086/413216. JSTOR 2828805. S2CID 83956410
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The simplest possible case is that only a genome exists. Without some specification of the self-reproducing steps, a genome-only system is probably better characterized as something like a
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The reference design specified small computer-controlled electric carts running on rails. Each cart could have a simple hand or a small bull-dozer shovel, forming a basic
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to self-replicate code from node-to-node can save the system administrator a lot of time. Mobile agents have a potential to crash a computer cluster if poorly implemented.
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Self-replication is a fundamental feature of life. It was proposed that self-replication emerged in the evolution of life when a molecule similar to a double-stranded
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could in principle assume many different shapes, have many different functional features, and be associated with many different types of chemical species.
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4 CPU. That is, the technology is achievable with a relatively small engineering group in a reasonable commercial time-scale at a reasonable cost.
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Self-reproductive systems are conjectured systems which would produce copies of themselves from industrial feedstocks such as metal bar and wire.
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systems assemble copies of themselves from finished, delivered parts. Simple examples of such systems have been demonstrated at the macro scale.
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Wang, Tong; Sha, Ruojie; Dreyfus, Rémi; Leunissen, Mirjam E.; Maass, Corinna; Pine, David J.; Chaikin, Paul M.; Seeman, Nadrian C. (2011).
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Exceptions to this pattern may be possible, although almost all known examples adhere to it. Scientists have come close to constructing
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Li, Jun; Haas, Wilhelm; Jackson, Kirsten; Kuru, Erkin; Jewett, Michael C.; Fan, Z. Hugh; Gygi, Steven; Church, George M. (2017-07-21).
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tiles may be joined together to form a larger tile that is similar to the original. This is an aspect of the field of study known as
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different ways so as to form larger replicas of themselves. Setisets in which every shape is distinct are called 'perfect'. A rep-
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in particular believe that their work will likely fail to reach a state of maturity until human beings design a self-replicating
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For an image that does not show how this replicates, see: Eric W. Weisstein. "Sphinx." From MathWorld--A Wolfram Web Resource.
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The goal of self-replication in space systems is to exploit large amounts of matter with a low launch mass. For example, an
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become impossibly large. Many bottom-up approaches to nanotechnology take advantage of biochemical or chemical self-assembly.
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including biological life, and is simpler as it does not require the program to contain a complete description of itself.
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HenryQuastler (1964) Emergence of Biological Organization, Yale University Press, New Haven Connecticut ASIN: B0000CMHJ2
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Merely exploiting the replicative abilities of existing cells is insufficient, because of limitations in the process of
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Natural replicators have all or most of their design from nonhuman sources. Such systems include natural life forms.
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is a self-reproducing computer program that, when executed, outputs its own code. For example, a quine in the
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of self-replicating machine would copy itself through the galaxy and universe, sending information back.
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Recent research has begun to categorize replicators, often based on the amount of support they require.
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might also be designed to self-replicate under their own power. This, in turn, has given rise to the "
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pathways. These can be an important guide to avoid design difficulties in self-replicating machinery.
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Much of the design study was concerned with a simple, flexible chemical system for processing lunar
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Replication Process, (10) Replicator Performance, (11) Product Structure, and (12) Evolvability.
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reproduce using the hardware and software already present on computers. Self-replication in
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For a detailed article on mechanical reproduction as it relates to the industrial age see
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The design space for machine replicators is very broad. A comprehensive study to date by
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For a discussion of other chemical bases for hypothetical self-replicating systems, see
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A mechanism for effecting construction within the host environment of the replicator
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ribosomal self replication have been attempted, but as of January 2021, indefinite
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One form of natural self-replication that is not based on DNA or RNA occurs in
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Moulin, Giuseppone (2011). "Dynamic Combinatorial Self-Replicating Systems".
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Manufacture new parts including its smallest parts and thinking apparatus
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pentagons can be joined together to make one with twice the dimensions.
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supported on pillars. The other machinery could run under the canopy.
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proteins can replicate by converting normal proteins into rogue forms.
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A fully novel artificial replicator is a reasonable near-term goal. A
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and will create variants of itself. These variants will be subject to
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Kühnlein, Alexandra; Lanzmich, Simon A.; Brun, Dieter (2021-03-02).
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that yields construction of an identical or similar copy of itself.
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It is a long-term goal of some engineering sciences to achieve a
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A classic theoretical study of replicators in space is the 1980
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a self-replicating tiling is a tiling pattern in which several
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NASA Institute for Advance Concepts study by General Dynamics
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A variation of self replication is of practical relevance in
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problem occurs as in natural self replication. A compiler (
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For an interpretation in terms of the origin of life, see
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has been an area of research and a subject of interest in
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first comprehensive survey of entire field in 2004 by
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Molecular nanotechnology § Replicating nanorobots
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study of autotrophic clanking replicators, edited by
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Pasadena, California. pp. 1–36. 27:Type of behavior of a dynamical system 1325:"Molecular Nanotechnology Guidelines" 1278:. bbc.com. 2016-08-24. Archived from 7: 1030:Von Neumann machine (disambiguation) 621:adding citations to reliable sources 1555:Kinematic Self-Replicating Machines 789:Space exploration and manufacturing 730:: The idea of a meme was coined by 333:is the only known self-replicating 221:A self-replicating computer program 775:system is time consuming. Using a 25: 1154:Maximilian, Ludwig (2021-04-03). 1020:Von Neumann universal constructor 528:Provide a consistent power source 126:Von Neumann universal constructor 1347:Constitutional Dynamic Chemistry 597: 368:shapes that can be assembled in 1255:For further illustrations, see 608:needs additional citations for 360:or setiset. A setiset of order 2270:Last universal common ancestor 1865:Defective interfering particle 1548:, a 1980 NASA study edited by 483:construction, where a similar 416:Self replicating clay crystals 349:for self-replicating tilings. 1: 2406:Clonally transmissible cancer 1842:Satellite-like nucleic acids 522:Obtain construction materials 999:(self-replicated 3D printer) 1008:Self-replicating spacecraft 743:and are often described as 507:Mechanical self-replication 241:Python programming language 180:Classes of self-replication 2450: 1962:Class II or DNA transposon 1957:Class I or retrotransposon 1079:von Neumann, John (1948). 927:(also see the listing for 885: 867:) or purified metals. An 510: 337:. For example, four such 306: 224: 123: 29: 2275:Earliest known life forms 2149:Repeated sequences in DNA 1404:10.1021/acssynbio.6b00342 709:is concerned with making 464:at approximately that of 2122:Endogenous viral element 1940:Horizontal gene transfer 1587:Self-replicating tilings 1003:Self-replicating machine 940:alternative biochemistry 707:molecular nanotechnology 513:Self-replicating machine 67:. During cell division, 1819:dsDNA satellite virus ( 1538:von Neumann, J., 1966, 911:molecular manufacturing 882:Molecular manufacturing 531:Program the new members 303:Self-replicating tiling 32:Biological reproduction 18:Self-replicating system 2377:Helper dependent virus 1693:Biological dark matter 874:melted the materials. 576:broadcast architecture 408: 396: 150:RNA that can be copied 49: 2137:Endogenous retrovirus 2110:Origin of replication 1826:ssDNA satellite virus 1816:ssRNA satellite virus 1392:ACS Synthetic Biology 773:distributed computing 402: 390: 55:is any behavior of a 41: 2081:Secondary chromosome 2076:Extrachromosomal DNA 1952:Transposable element 1355:10.1007/128_2011_198 925:protein biosynthesis 686:: simple systems of 617:improve this article 358:self-tiling tile set 2317:Model lipid bilayer 2159:Interspersed repeat 1575:Gödel, Escher, Bach 1478:10.1038/nature10500 1470:2011Natur.478..225W 1129:10.7554/eLife.63431 1081:The Hixon Symposium 1035:Self reconfigurable 1015:Space manufacturing 705:or more precisely, 660:population dynamics 571:Foresight Institute 462:clanking replicator 435:clanking replicator 43:Molecular structure 1627:organic structures 1580:Douglas Hofstadter 1262:2016-03-08 at the 765:Parallel computing 719:molecular machines 451:manufactured goods 409: 397: 380:identical pieces. 130:Early research by 103:) will experience 77:Biological viruses 50: 2421: 2420: 2362:Non-cellular life 2169: 2168: 1908: 1907: 1881: 1880: 1835:ssRNA satellite ( 1464:(7368): 225–228. 1364:978-3-642-28343-7 893:Nanotechnologists 751:Computer security 734:in his 1976 book 678:Systems chemistry 649: 648: 641: 413: 412: 343:Solomon W. Golomb 227:Quine (computing) 109:natural selection 105:genetic variation 69:DNA is replicated 16:(Redirected from 2441: 2434:Self-replication 2098:Gene duplication 1921: 1917:self-replication 1805: 1767: 1625:Self-replicating 1618: 1611: 1604: 1595: 1525: 1524: 1522: 1521: 1506: 1500: 1499: 1489: 1449: 1443: 1438: 1432: 1431: 1398:(7): 1327–1336. 1383: 1377: 1376: 1342: 1336: 1335: 1333: 1332: 1321: 1315: 1314: 1312: 1311: 1305: 1297: 1291: 1290: 1288: 1287: 1272: 1266: 1253: 1247: 1241: 1235: 1234: 1232: 1231: 1220: 1214: 1213: 1211: 1210: 1199: 1193: 1190: 1184: 1181: 1172: 1171: 1169: 1168: 1151: 1141: 1131: 1105: 1099: 1098: 1092: 1084: 1076: 1070: 1069: 1067: 1066: 1051: 769:computer cluster 759:computer viruses 736:The Selfish Gene 644: 637: 633: 630: 624: 601: 593: 449:in conventional 383: 382: 345:coined the term 290: 289: 286: 283: 280: 277: 274: 271: 268: 265: 262: 259: 256: 253: 250: 233:computer science 132:John von Neumann 89:Computer viruses 61:Biological cells 57:dynamical system 53:Self-replication 21: 2449: 2448: 2444: 2443: 2442: 2440: 2439: 2438: 2424: 2423: 2422: 2417: 2367:Synthetic virus 2355:Artificial cell 2328: 2256: 2165: 2054:RNA replication 2049:DNA replication 2037: 2028:Group II intron 1926: 1916: 1904: 1895:Mammalian prion 1877: 1853: 1832:dsRNA satellite 1829:ssDNA satellite 1799: 1792: 1761: 1754: 1699: 1628: 1622: 1592: 1529: 1528: 1519: 1517: 1508: 1507: 1503: 1451: 1450: 1446: 1439: 1435: 1385: 1384: 1380: 1365: 1344: 1343: 1339: 1330: 1328: 1327:. 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2254: 2249: 2248: 2247: 2242: 2234: 2232:Kappa organism 2229: 2228: 2227: 2222: 2217: 2212: 2207: 2197: 2196: 2195: 2190: 2179: 2177: 2171: 2170: 2167: 2166: 2164: 2163: 2162: 2161: 2156: 2146: 2145: 2144: 2139: 2134: 2129: 2119: 2118: 2117: 2107: 2106: 2105: 2103:Non-coding DNA 2100: 2095: 2085: 2084: 2083: 2078: 2073: 2068: 2058: 2057: 2056: 2045: 2043: 2039: 2038: 2036: 2035: 2030: 2025: 2023:Group I intron 2020: 2015: 2014: 2013: 2003: 2002: 2001: 1998: 1989: 1986: 1981: 1976: 1966: 1965: 1964: 1959: 1949: 1948: 1947: 1945:Genomic island 1942: 1931: 1929: 1925:Mobile genetic 1918: 1910: 1909: 1906: 1905: 1903: 1902: 1897: 1891: 1889: 1883: 1882: 1879: 1878: 1876: 1875: 1874: 1873: 1870: 1861: 1859: 1855: 1854: 1852: 1851: 1850: 1849: 1846: 1840: 1833: 1830: 1827: 1824: 1817: 1813: 1811: 1802: 1794: 1793: 1791: 1790: 1783: 1775: 1773: 1764: 1756: 1755: 1753: 1752: 1750:dsDNA-RT virus 1747: 1745:ssRNA-RT virus 1742: 1740:(−)ssRNA virus 1737: 1735:(+)ssRNA virus 1732: 1727: 1722: 1721: 1720: 1709: 1707: 1701: 1700: 1698: 1697: 1696: 1695: 1690: 1680:Incertae sedis 1676: 1675: 1674: 1669: 1664: 1659: 1649: 1644: 1638: 1636: 1630: 1629: 1623: 1621: 1620: 1613: 1606: 1598: 1591: 1590: 1583: 1571: 1565: 1559:Robert Freitas 1552: 1550:Robert Freitas 1543: 1535: 1534: 1533: 1527: 1526: 1501: 1444: 1433: 1378: 1363: 1337: 1316: 1292: 1267: 1248: 1236: 1215: 1194: 1185: 1173: 1100: 1071: 1045: 1044: 1042: 1039: 1038: 1037: 1032: 1027: 1022: 1017: 1012: 1011: 1010: 1000: 994: 989: 984: 979: 974: 972:Complex system 969: 964: 959: 954: 947: 944: 886:Main article: 883: 880: 815:Robert Freitas 790: 787: 785: 782: 781: 780: 762: 755:computer worms 748: 725: 722: 703:Nanotechnology 700: 681: 671: 664:quorum sensing 647: 646: 605: 603: 596: 590: 587: 536: 535: 532: 529: 526: 523: 511:Main article: 508: 505: 430: 427: 417: 414: 411: 410: 304: 301: 292: 291: 225:Main article: 222: 219: 210:Robert Freitas 206: 205: 199: 196: 189: 181: 178: 170:polynucleotide 165: 164:Origin of life 162: 146: 145: 142: 139: 121: 118: 116: 113: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2446: 2435: 2432: 2431: 2429: 2414: 2411: 2407: 2404: 2402: 2399: 2398: 2397: 2394: 2392: 2388: 2386: 2385:Nanobacterium 2382: 2378: 2375: 2373: 2370: 2369: 2368: 2365: 2363: 2360: 2356: 2353: 2351: 2350:Cell division 2348: 2347: 2346: 2343: 2341: 2338: 2337: 2335: 2331: 2323: 2320: 2318: 2315: 2314: 2312: 2310: 2307: 2305: 2302: 2300: 2297: 2295: 2291: 2287: 2284: 2283: 2282: 2278: 2276: 2273: 2271: 2268: 2267: 2265: 2263: 2259: 2253: 2250: 2246: 2243: 2241: 2238: 2237: 2235: 2233: 2230: 2226: 2223: 2221: 2218: 2216: 2213: 2211: 2208: 2206: 2203: 2202: 2201: 2198: 2194: 2193:Hydrogenosome 2191: 2189: 2186: 2185: 2184: 2183:Mitochondrion 2181: 2180: 2178: 2176: 2175:Endosymbiosis 2172: 2160: 2157: 2155: 2154:Tandem repeat 2152: 2151: 2150: 2147: 2143: 2140: 2138: 2135: 2133: 2130: 2128: 2125: 2124: 2123: 2120: 2116: 2113: 2112: 2111: 2108: 2104: 2101: 2099: 2096: 2094: 2091: 2090: 2089: 2086: 2082: 2079: 2077: 2074: 2072: 2069: 2067: 2064: 2063: 2062: 2059: 2055: 2052: 2051: 2050: 2047: 2046: 2044: 2042:Other aspects 2040: 2034: 2031: 2029: 2026: 2024: 2021: 2019: 2016: 2012: 2009: 2008: 2007: 2004: 1999: 1997: 1993: 1990: 1987: 1985: 1982: 1980: 1977: 1975: 1972: 1971: 1970: 1967: 1963: 1960: 1958: 1955: 1954: 1953: 1950: 1946: 1943: 1941: 1938: 1937: 1936: 1933: 1932: 1930: 1928: 1922: 1919: 1915: 1911: 1901: 1898: 1896: 1893: 1892: 1890: 1888: 1884: 1871: 1868: 1867: 1866: 1863: 1862: 1860: 1856: 1847: 1844: 1843: 1841: 1838: 1834: 1831: 1828: 1825: 1822: 1818: 1815: 1814: 1812: 1810: 1806: 1803: 1801: 1795: 1789: 1788: 1787:Avsunviroidae 1784: 1782: 1781: 1780:Pospiviroidae 1777: 1776: 1774: 1772: 1768: 1765: 1763: 1757: 1751: 1748: 1746: 1743: 1741: 1738: 1736: 1733: 1731: 1728: 1726: 1723: 1719: 1716: 1715: 1714: 1711: 1710: 1708: 1706: 1702: 1694: 1691: 1689: 1688: 1684: 1683: 1682: 1681: 1677: 1673: 1670: 1668: 1665: 1663: 1660: 1658: 1655: 1654: 1653: 1650: 1648: 1645: 1643: 1640: 1639: 1637: 1635: 1634:Cellular life 1631: 1626: 1619: 1614: 1612: 1607: 1605: 1600: 1599: 1596: 1588: 1584: 1581: 1577: 1576: 1572: 1569: 1566: 1564: 1560: 1556: 1553: 1551: 1547: 1544: 1541: 1537: 1536: 1531: 1530: 1515: 1514:Science Daily 1511: 1505: 1502: 1497: 1493: 1488: 1483: 1479: 1475: 1471: 1467: 1463: 1459: 1455: 1448: 1445: 1442: 1437: 1434: 1429: 1425: 1421: 1417: 1413: 1409: 1405: 1401: 1397: 1393: 1389: 1382: 1379: 1374: 1370: 1366: 1360: 1356: 1352: 1348: 1341: 1338: 1326: 1320: 1317: 1302: 1296: 1293: 1282:on 2016-08-24 1281: 1277: 1271: 1268: 1265: 1261: 1258: 1252: 1249: 1246: 1240: 1237: 1226: 1219: 1216: 1205: 1198: 1195: 1189: 1186: 1180: 1178: 1174: 1163: 1162: 1157: 1149: 1145: 1140: 1135: 1130: 1125: 1121: 1117: 1116: 1111: 1104: 1101: 1096: 1090: 1082: 1075: 1072: 1060: 1056: 1050: 1047: 1040: 1036: 1033: 1031: 1028: 1026: 1023: 1021: 1018: 1016: 1013: 1009: 1006: 1005: 1004: 1001: 998: 995: 993: 990: 988: 985: 983: 980: 978: 975: 973: 970: 968: 965: 963: 960: 958: 955: 953: 950: 949: 945: 943: 941: 936: 932: 930: 926: 921: 920: 917: 912: 906: 905: 902: 898: 894: 889: 881: 879: 875: 873: 870: 866: 862: 859: 855: 852: 847: 845: 840: 838: 833: 831: 827: 823: 818: 816: 812: 807: 803: 801: 800:Another model 796: 788: 783: 778: 777:mobile agents 774: 770: 766: 763: 760: 756: 752: 749: 746: 742: 737: 733: 729: 726: 723: 720: 716: 712: 708: 704: 701: 698: 695: 691: 690: 685: 682: 679: 675: 672: 669: 665: 661: 657: 654: 653: 652: 643: 640: 632: 622: 618: 612: 611: 606:This section 604: 600: 595: 594: 588: 586: 584: 579: 577: 572: 567: 565: 564: 559: 558: 553: 550:" version of 549: 545: 541: 533: 530: 527: 524: 521: 520: 519: 514: 506: 504: 502: 498: 494: 490: 486: 485:bootstrapping 482: 477: 473: 471: 467: 463: 459: 454: 452: 448: 444: 440: 436: 428: 426: 423: 415: 406: 401: 394: 389: 385: 384: 381: 379: 375: 371: 367: 363: 359: 355: 350: 348: 344: 340: 336: 332: 328: 324: 320: 316: 310: 302: 300: 296: 246: 245: 244: 242: 238: 234: 228: 220: 218: 215: 211: 203: 200: 197: 193: 190: 187: 186: 185: 179: 177: 175: 171: 163: 161: 159: 154: 151: 143: 140: 137: 136: 135: 133: 127: 119: 114: 112: 110: 106: 102: 98: 94: 90: 86: 82: 78: 74: 70: 66: 65:cell division 62: 58: 54: 48: 44: 40: 36: 33: 19: 2372:Viral vector 2215:Gerontoplast 2142:Transpoviron 1914:Nucleic acid 1900:Fungal prion 1798:Helper-virus 1785: 1778: 1685: 1678: 1624: 1586: 1585:Kenyon, R., 1573: 1563:Ralph Merkle 1539: 1518:. Retrieved 1516:. 2011-10-17 1513: 1504: 1461: 1457: 1447: 1436: 1395: 1391: 1381: 1346: 1340: 1329:. Retrieved 1319: 1308:. Retrieved 1306:. 2004-04-30 1295: 1284:. Retrieved 1280:the original 1270: 1251: 1239: 1228:. Retrieved 1218: 1207:. Retrieved 1197: 1188: 1165:. Retrieved 1161:SciTechDaily 1159: 1119: 1113: 1103: 1080: 1074: 1063:. Retrieved 1061:. 2010-01-01 1058: 1049: 962:Astrochicken 937: 933: 922: 907: 891: 876: 848: 841: 834: 819: 808: 804: 792: 693: 687: 684:Biochemistry 650: 635: 626: 615:Please help 610:verification 607: 580: 568: 561: 555: 537: 516: 478: 474: 455: 447:distribution 432: 429:Applications 419: 377: 373: 369: 365: 364:is a set of 361: 351: 323:tessellation 312: 297: 293: 230: 214:Ralph Merkle 207: 183: 167: 155: 147: 129: 73:reproduction 52: 51: 35: 2396:Cancer cell 2262:Abiogenesis 2210:Chromoplast 2205:Chloroplast 1988:Degradative 1730:dsRNA virus 1725:ssDNA virus 1718:Giant virus 1713:dsDNA virus 967:Autopoiesis 952:Abiogenesis 903:dimensions. 844:solar cells 795:autotrophic 784:In industry 629:August 2017 493:source code 354:Lee Sallows 192:Autotrophic 2304:Proteinoid 2299:Coacervate 2252:Nitroplast 2245:Trophosome 2240:Bacteriome 2225:Apicoplast 2220:Leucoplast 2061:Chromosome 1979:Resistance 1687:Parakaryon 1520:2011-10-17 1331:2013-10-22 1310:2013-10-22 1286:2019-11-10 1230:2013-06-29 1209:2013-06-29 1167:2021-04-03 1122:: e63431. 1065:2013-10-22 1041:References 715:assemblers 552:Armageddon 544:assemblers 407:of order 4 403:A perfect 307:See also: 124:See also: 30:See also: 2313:Research 2294:Protocell 2033:Retrozyme 1992:Virulence 1974:Fertility 1821:Virophage 1809:Satellite 1800:dependent 1652:Eukaryota 1412:2161-5063 1089:cite book 901:nanometer 897:assembler 830:Aluminium 697:ribosomal 674:Chemistry 668:autophagy 489:phenotype 352:In 2012, 347:rep-tiles 331:hexiamond 319:congruent 195:products. 81:replicate 2428:Category 2340:Organism 2333:See also 2309:Sulphobe 2286:Ribozyme 2281:RNA life 2188:Mitosome 2132:Prophage 2127:Provirus 2115:Replicon 2071:Circular 2018:Phagemid 1935:Mobilome 1927:elements 1837:Virusoid 1760:Subviral 1672:Protista 1657:Animalia 1642:Bacteria 1496:21993758 1428:28330337 1373:21728135 1260:Archived 1148:33648631 1059:BBC News 982:Memetics 946:See also 869:electric 826:Chlorine 822:regolith 728:Memetics 694:in vitro 689:in vitro 548:grey goo 497:genotype 481:compiler 335:pentagon 325:. The " 315:geometry 261:;print(a 115:Overview 101:mutation 93:robotics 2322:Jeewanu 2236:Organs 2200:Plastid 2000:Cryptic 1969:Plasmid 1667:Plantae 1647:Archaea 1487:3192504 1466:Bibcode 1420:1348832 1139:7924937 858:plaster 851:casting 741:viruses 680:field). 656:Biology 542:scale, 501:mutated 470:Pentium 443:capital 405:setiset 339:concave 267:a)' 255:'a= 158:crystal 2413:Virome 2391:Nanobe 2088:Genome 2066:Linear 2011:Fosmid 2006:Cosmid 1771:Viroid 1762:agents 1494:  1484:  1458:Nature 1426:  1418:  1410:  1371:  1361:  1146:  1136:  997:RepRap 865:basalt 713:scale 589:Fields 393:sphinx 391:Four ' 327:sphinx 120:Theory 1887:Prion 1858:Other 1705:Virus 1662:Fungi 1532:Notes 1304:(PDF) 1115:eLife 1025:Virus 992:Robot 861:molds 854:robot 837:robot 745:viral 557:Bloom 538:On a 466:Intel 439:labor 273:print 237:quine 85:prion 2401:HeLa 2345:Cell 2093:Gene 1561:and 1492:PMID 1424:PMID 1416:OSTI 1408:ISSN 1369:PMID 1359:ISBN 1144:PMID 1095:link 987:Life 916:Lego 872:oven 811:NASA 757:and 711:nano 569:The 563:Prey 560:and 540:nano 458:NASA 445:and 422:clay 243:is: 212:and 79:can 1984:Col 1872:DNA 1869:RNA 1848:DNA 1845:RNA 1578:by 1482:PMC 1474:doi 1462:478 1400:doi 1351:doi 1134:PMC 1124:doi 929:RNA 899:of 849:A " 771:or 619:by 468:'s 313:In 231:In 174:RNA 47:DNA 45:of 2430:: 1996:Ti 1512:. 1490:. 1480:. 1472:. 1460:. 1456:. 1422:. 1414:. 1406:. 1394:. 1390:. 1367:. 1357:. 1176:^ 1158:. 1142:. 1132:. 1120:10 1118:. 1112:. 1091:}} 1087:{{ 1057:. 942:. 914:a 839:. 817:. 666:, 662:, 585:. 578:. 566:. 453:. 441:, 329:" 264:%% 258:%r 235:a 160:. 75:. 2389:? 2383:? 2292:† 2279:? 1994:/ 1839:) 1823:) 1617:e 1610:t 1603:v 1523:. 1498:. 1476:: 1468:: 1430:. 1402:: 1396:6 1375:. 1353:: 1334:. 1313:. 1289:. 1233:. 1212:. 1170:. 1150:. 1126:: 1097:) 1068:. 761:. 747:. 642:) 636:( 631:) 627:( 613:. 495:( 378:n 374:n 370:n 366:n 362:n 288:) 285:a 282:% 279:a 276:( 270:; 252:= 249:a 20:)

Index

Self-replicating system
Biological reproduction

Molecular structure
DNA
dynamical system
Biological cells
cell division
DNA is replicated
reproduction
Biological viruses
replicate
prion
Computer viruses
robotics
science fiction
mutation
genetic variation
natural selection
Von Neumann universal constructor
John von Neumann
RNA that can be copied
crystal
polynucleotide
RNA
Autotrophic
Self-assembling
Robert Freitas
Ralph Merkle
Quine (computing)

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