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<p>Contact</p>
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<p>j@bio.cc, BiO Centre, Cambridge, UK, +44 1223 524889</p>
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<strong><font face="Times New Roman" size="4">1843</font><font face="Times New Roman">: </font></strong><font face="Times New Roman">Richard Owen elaborated the distinction of <strong>homology</strong> and <strong>analogy.</strong> </font>
<p><strong><font face="Times New Roman" size="4">1850-1855:</font><font face="Times New Roman"> </font><font face="Times New Roman">Jean-Baptiste Boussingault</font></strong><font face="Times New Roman">, who had proved that the carbon in plants came from atmospheric CO</font><sub><font face="Times New Roman">2</font></sub><font face="Times New Roman">, proposes that plant nitrogen comes from the soil. demonstrates that higher plants cannot utilize atmospheric nitrogen, but only nitrates from the soil. He also demonstrates the necessity of nitrogen for plants and animals. His experimental results were not conclusive, however, and conflicting data were soon published by another Parisian chemist, </font><strong><font face="Times New Roman">Ville</font></strong><font face="Times New Roman">, and popularized by </font><strong><font face="Times New Roman">Liebig</font></strong><font face="Times New Roman">. The question he resolved was whether the nitrogen that plants need to grow came from the soil or from the air. </font><strong><font face="Times New Roman">Joseph Priestley</font></strong><font face="Times New Roman"> had argued, in the 18</font><sup><font face="Times New Roman">th</font></sup><font face="Times New Roman"> century, in favor of the air, and his opinion was seconded in the early 19</font><sup><font face="Times New Roman">th </font></sup><font face="Times New Roman">century, by </font><strong><font face="Times New Roman">Liebig</font></strong><font face="Times New Roman">, then the world's most famous chemist.</font></p>
<p style="MARGINmargin: 6pt 0cm;"><strong><span style="FONTfont-FAMILYfamily: Arial;"><font face="Times New Roman" color="#cc0000" size="4">1855:</font></span></strong><span style="FONTfont-FAMILYfamily: Arial;"><font face="Times New Roman"> <strong>Alfred Russell Wallace publishes </strong></font><em><font face="Times New Roman"><strong>On the Law Which Has Regulated the Introduction of New Species</strong></font></em></span></p><p><font face="Times New Roman" size="4"><strong>1858:</strong></font><font face="Times New Roman"> <strong>Charles Darwin and Alfred Wallace publish papers on theory of evolution.<br /></strong></font></p>
<p><font face="Times New Roman" color="#cc0000" size="4"><strong>1859:</strong></font><font face="Times New Roman" size="4"> </font><font face="Times New Roman" size="3"><strong>Charles Darwin, Cambridge, UK, publishes </strong></font><em><font face="Times New Roman" size="3"><strong>Th</strong></font></em><font face="Times New Roman" size="3"><strong>e O</strong></font><em><font face="Times New Roman" size="3"><strong>rigin of Species</strong></font></em><font face="Times New Roman" size="3"><strong>, vastly strengthening the adaptationist hypothesis.</strong></font></p>
<strong><span style="FONTfont-FAMILYfamily: Arial;"><font face="Times New Roman" size="4">1864:</font></span></strong><span style="FONTfont-FAMILYfamily: Arial;"><font face="Times New Roman"> Ernst Haeckel (Häckel) outlines the essential elements of modern zoological classification</font></span><p><span lang="EN-GB" times="" new="" style="FONTfont-FAMILYfamily: 'Times New Roman'; mso-ascii-font-family: " new="" times=""><strong><font face="Times New Roman" color="#cc3300" size="4">1865:</font><font face="Times New Roman" size="3"> </font></strong></span><font face="Times New Roman" size="3">Gregory Mendel (1823-1884), Austria, <img height="44" altborder="0" width="img1.gif52" src="http://bio.cc/Bioinformatics/img1.gif" widthalt="52" border="0img1.gif" /> established the genetic inheritance. The theoretical study of genetics. </font><em><font face="Times New Roman">Experiments in Plant Hybridisation</font></em><font face="Times New Roman">. Cambridge, MA: Harvard University Press. His work, in German, was first published in 1865 in the </font><em><font face="Times New Roman">Proceedings of the Brünn Society for Natural History</font></em><font face="Times New Roman">, Brünn, Austria (</font><font face="Times New Roman">Hewlett, 1998</font><font face="Times New Roman">). It was ignored for a generation.</font></p>
<p><font face="Times New Roman,Helvetica" color="#cc0000" size="4"><strong>1868:</strong></font><font face="Times New Roman,Helvetica"><font color="#8000ff"> </font></font><font face="Times New Roman,Helvetica" color="#000000">Friedrich </font><font face="Times New Roman,Helvetica" color="#000000">Miescher</font><font face="Times New Roman,Helvetica" color="#000000"> </font><font face="Times New Roman,Helvetica">- discovery of </font><font face="Times New Roman,Helvetica" color="#000000"><strong>nuclein</strong></font><font face="Times New Roman"> </font><font face="Times New Roman,Helvetica">found in cell nucleus, acidic, rich in <strong>PO<sub>4</sub></strong>,</font><font face="Times New Roman"> </font><font face="Times New Roman,Helvetica">lacks <strong>S </strong>(characteristic of protein).</font><font face="Times New Roman"> </font><font face="Times New Roman,Helvetica">Now know this as <strong>nucleic acid</strong></font><font face="Times New Roman"> </font></p>
<font face="Times New Roman" size="4"><strong>1902:</strong></font><font face="Times New Roman" size="3"> The chromosome theory of heredity is proposed by Sutton and Boveri, working independently. </font>
<p><strong><font face="Times New Roman" size="4">1930</font><font face="Times New Roman" size="3">: </font></strong><font face="Times New Roman" size="3">Tiselius, Uppsala University, Sweden,</font><strong><font face="Times New Roman" size="3"> </font></strong><font face="Times New Roman" size="3">A</font><strong><font face="Times New Roman" size="3"> </font></strong><font face="Times New Roman,Sans Serif" color="#000000" size="3">new technique, electrophoresis, is introduced by Tiselius for separating proteins in solution. </font><font face="Times New Roman" size="3">"The moving-boundary method of studying the electrophoresis of proteins" (published in </font><em><font face="Times New Roman" size="3">Nova Acta Regiae Societatis Scientiarum Upsaliensis</font></em><font face="Times New Roman" size="3">, Ser. IV, Vol. 7, No. 4)</font></p>
<strong><font face="Times New Roman,Sans Serif" color="#000000" size="4">1930s</font><font face="Times New Roman,Sans Serif" color="#000000" size="3">: </font></strong><font face="Times New Roman">Chemical nature of nuclei acid investigated. It was thought to be a tetranucleotide composed of one unit each of adenylic, guanylic, thymidylic and cytidylic acids</font>
<p><strong><font face="Times New Roman" color="#cc3300" size="4">1936</font><font face="Times New Roman" size="3">: </font></strong><font face="Times New Roman" size="3">Alan Turing, Cambridge University, The Turing machine, computability, universal machine<br /></font></p>
<strong><font face="Times New Roman" size="4">1941:</font><font face="Times New Roman" size="3"> </font></strong><font face="Times New Roman" size="3">Beadle and Tatum. Genetic Control of Biochemical Reactions in Neurospora: </font><font face="Times New Roman">First sound scientific evidence for </font><font face="Times New Roman" color="#ff0000">one-gene-one-enzyme</font><font face="Times New Roman"> hypothesis </font>
<p><strong><font face="Times New Roman" size="4">1944</font><font face="Times New Roman">:</font></strong><font face="Times New Roman"> </font><font face="Times New Roman">Oswald Avery</font><font face="Times New Roman"> identifies nucleic acids as the active principle in bacterial transformation. Avery, O. T., C. M. MacLeod, and M. McCarty (1944). Studies on the Chemical Nature of Substance Inducing Transformation of Pneumococcal Typoes. Induction of Transformation by a Desoxyribonucleic Acid Fraction Isolated from Pneumococcus Type III. </font><em><font face="Times New Roman">Journal of Experimental Medicine</font></em><font face="Times New Roman"> 79: 137-158. Also in Peters (1959). Oswald Avery (1877-1955) was a bacteriologist whose research on pneumococcus bacteria made him one of the founders of immunochemistry and laid the foundation for later discoveries that launched the science of molecular genetics. </font></p>
<p align="left"><font face="Times New Roman" size="4"><strong>1986: </strong></font><font face="Times New Roman,Sans Serif" color="#000000" size="3">The SWISS-PROT database is created by the Department of Medical Biochemistry of the University of Geneva and the European Molecular Biology Laboratory (EMBL).</font></p>
<p align="left"><font face="Times New Roman,Sans Serif" color="#000000" size="4"><strong>1987: </strong></font><font face="Times New Roman,Sans Serif" color="#000000" size="3">The use of yeast artifical chromosomes (YAC) is described (David T. Burke, et. al., <em>Science</em>, <strong>236</strong>: 806-812).</font></p>
<p align="left"><font face="Times New Roman" size="4"><strong>1987: </strong></font><font face="Times New Roman">McClintock, Barbara (1987).</font><em><font face="Times New Roman"> The Discovery and Characterization of Transposable Elements: The Collected Papers <a href="javascript:void(0);/*1242361025806*/">Custon College Paper</a> of Barbara McClintock</font></em><font face="Times New Roman">. New York: Garland, 1987. In her 1983 Nobel lecture, McClintock said the genome is "a highly sensitive organ of the cell, that in times of stress could initiate its own restructuring and renovation." See the </font><font face="Times New Roman">biography</font><font face="Times New Roman"> at the Cold Springs Harbor site (external). For a current discussion, see </font><font face="Times New Roman">Pennisi 1998</font><font face="Times New Roman">. </font></p>
<p align="left"><font face="Times New Roman" size="4"><strong>1987:</strong></font><font face="Times New Roman" size="3"> </font><font face="Times New Roman,Sans Serif" color="#000000" size="3">The physical map of <em>e. coli</em> is published (Y. Kohara, et. al., <em>Cell</em> <strong>51:</strong> 319-337).</font></p>
<p align="left"><font face="Times New Roman" size="4"><strong>1987:</strong></font><font face="Times New Roman" size="3"> </font><font face="Times New Roman,Sans Serif" color="#000000" size="3">Perl (Practical Extraction Report Language) is released by Larry Wall.</font></p>
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<p align="left"><strong><font face="Times New Roman" size="5">Off-line References</font></strong></p>
<p align="left"><font face="Times New Roman,Helvetica">J. Cairns, G. Stent, & J. Watson (1966). <strong>Phage and the Origins of Molecular Biology</strong>. Freeman.</font><font face="Times New Roman"> <br /></font><font face="Times New Roman,Helvetica"> [Biographical essays on the early days by the founders of molecular genetics]</font><font face="Times New Roman"> </font></p><p><font face="Times New Roman,Helvetica">F. H. C. Crick (1988). <strong>What Mad Pursuit?</strong> Basic Books.</font><font face="Times New Roman"> <br /></font><font face="Times New Roman,Helvetica"> [Crick's version of the 'double helix' history, and lots more]</font><font face="Times New Roman"> </font></p><p><font face="Times New Roman,Helvetica">L. Gonick & M. Wheelis (1991). <strong>The Cartoon Guide to Genetics</strong>, 2nd ed. Harper Collins.</font><font face="Times New Roman"> <br /></font><font face="Times New Roman,Helvetica"> [Great illustrations: a good primer of basic Mendelian and molecular genetics]</font><font face="Times New Roman"> </font></p><p><font face="Times New Roman,Helvetica">H. F. Judson (1979). <strong>The Eighth Day of Creation</strong>. Simon & Schuster.</font><font face="Times New Roman"> <br /></font><font face="Times New Roman,Helvetica"> [A general history of molecular biology]</font><font face="Times New Roman"> </font></p><p><font face="Times New Roman,Helvetica">A. Sayre (1975). <strong>Rosalind Franklin and DNA</strong>. Norton.</font><font face="Times New Roman"> <br /></font><font face="Times New Roman,Helvetica"> [A re-appraisal of the role of Franklin, with commentary on the role of women in science]</font><font face="Times New Roman"> </font></p><p><font face="Times New Roman,Helvetica">G. Stent (1971). <strong>Molecular Genetics: an introductory narrative</strong>. Freeman.</font><font face="Times New Roman"> <br /></font><font face="Times New Roman,Helvetica"> [A classic, now factually dated textbook, still highly readable]</font><font face="Times New Roman"> </font></p><p><font face="Times New Roman,Helvetica">J. D. Watson (1968). <strong>The Double Helix</strong>. Atheneum.</font><font face="Times New Roman"> <br /></font><font face="Times New Roman,Helvetica"> [An entertaining, irreverent, sexist, account of the discovery of the structure of DNA.</font><font face="Times New Roman"> <br /></font><font face="Times New Roman,Helvetica"> See the accounts of Crick and Sayre for an antidote]</font><font face="Times New Roman"> </font></p>
<p><font face="Palatino" size="2"><em>History of Genetics: From Prehistoric Times to the Rediscovery of Mendel's Laws</em> by Hans Stubbe (MIT press, out of print)</font></p>
<p><font face="Palatino" size="2"><em>A History of Genetics</em> by Alfred Sturtevant</font></p>