Epigenetics-definition - Genes, Genetics, and Epigenetics:...

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DOI: 10.1126/science.293.5532.1103 , 1103 (2001); 293 Science et al. C.-t. Wu, Correspondence Genes, Genetics, and Epigenetics: A www.sciencemag.org (this information is current as of March 31, 2009 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/293/5532/1103 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/293/5532/1103/DC1 can be found at: Supporting Online Material found at: can be related to this article A list of selected additional articles on the Science Web sites http://www.sciencemag.org/cgi/content/full/293/5532/1103#related-content http://www.sciencemag.org/cgi/content/full/293/5532/1103#otherarticles , 1 of which can be accessed for free: cites 5 articles This article 36 article(s) on the ISI Web of Science. cited by This article has been http://www.sciencemag.org/cgi/content/full/293/5532/1103#otherarticles 6 articles hosted by HighWire Press; see: cited by This article has been http://www.sciencemag.org/cgi/collection/genetics Genetics : subject collections This article appears in the following http://www.sciencemag.org/about/permissions.dtl in whole or in part can be found at: this article permission to reproduce of this article or about obtaining reprints Information about obtaining registered trademark of AAAS. is a Science 2001 by the American Association for the Advancement of Science; all rights reserved. The title Copyright American Association for the Advancement of Science, 1200 New York Avenue NW, Washington, DC 20005. (print ISSN 0036-8075; online ISSN 1095-9203) is published weekly, except the last week in December, by the Science on March 31, 2009 www.sciencemag.org Downloaded from
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Genes, Genetics, and Epigenetics: A Correspondence C.-t. Wu and J. R. Morris Over the past months, as this special issue took shape, the Editors of Science have monitored an exchange of seven letters initiated by three queries from M. Bacon. These queries concern the popular definitions of “genes,” “genetics,” and “epigenetics.” Below, we reprint excerpts from these letters, referring interested readers to www.sciencemag.org/cgi/ content/full/293/5532/1103/DC1 for the complete text and additional references. Dear Editors, How remarkable has been the progress of this new science called “genetics”! So many of the puzzles that have fueled the great debates of Heredity appear solved and scarcely can I be- lieve the elegance of the solutions. To think that in so short a time from my own we will have witnessed progression from the Hippocratic and Darwinian theories of pangenesis to a capability of altering the very nature of hereditary material such that species can be intermingled! Here, I dare not linger but to bid you imagine my awe. My current state, however, is not just one of
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Epigenetics-definition - Genes, Genetics, and Epigenetics:...

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