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      <title>DNA Timeline  by MASON LESLIE</title>
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      <description>A Mason Leslie Timeline </description>
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      <pubDate>2021-04-23 15:30:51 UTC</pubDate>
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         <title>Thomas Hunt Morgan (1908)</title>
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         <link>https://padlet.com/3493121/jnnhqxn172i7lw08/wish/1455313317</link>
         <description><![CDATA[<div><br>Experiment-Morgan  bred  white eyed mutant flies and found that in one generation of flies, the trait was only  in males.&nbsp;<br><br>Contributions- Established that genes are located on chromosomes</div>]]></description>
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         <pubDate>2021-04-24 23:15:41 UTC</pubDate>
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         <title>Fredrick Griffith (1928)</title>
         <author>3493121</author>
         <link>https://padlet.com/3493121/jnnhqxn172i7lw08/wish/1455314327</link>
         <description><![CDATA[<div>Experiment- Injected mice with different strains of bacteria: rough(safe), smooth (deadly) but found when heat killed smooth strain was mixed with the rough strain, the mouse still died<br>Contributions- Reported the first widely accepted variations of bacterial transformation&nbsp;</div>]]></description>
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         <pubDate>2021-04-24 23:17:01 UTC</pubDate>
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         <title>Avery, McCarty, Maclead(1944)</title>
         <author>3493121</author>
         <link>https://padlet.com/3493121/jnnhqxn172i7lw08/wish/1455317692</link>
         <description><![CDATA[<div>Experiment-They  took the Live R and heat-treated S and mixed it with protease( protein destroyer) and *DNase ( destroys DNA)<br><br>Contribution- determined the cause of the transformation in Griffith's experiment&nbsp;<br><br><br></div>]]></description>
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         <pubDate>2021-04-24 23:21:07 UTC</pubDate>
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         <title>Chargaff(1947)</title>
         <author>3493121</author>
         <link>https://padlet.com/3493121/jnnhqxn172i7lw08/wish/1480408716</link>
         <description><![CDATA[<div>Experiment-<br>Used paper Chromatography and UV spectroscopy to examine abundance of nucleobases<br>Contributions- Established Chargaff's rules ( Adenine has the same amount as thymine and guanine has the same amount as cytosine)</div>]]></description>
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         <pubDate>2021-05-01 02:56:04 UTC</pubDate>
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         <title>Hershey and Chase  (1952)</title>
         <author>3493121</author>
         <link>https://padlet.com/3493121/jnnhqxn172i7lw08/wish/1480422236</link>
         <description><![CDATA[<div>Experiment- The <strong>Hershey</strong>–<strong>Chase</strong> experiments were a series of experiments conducted in 1952 by Alfred <strong>Hershey</strong> and Martha <strong>Chase</strong> that helped to confirm that DNA is genetic material<br><br>Contributions-&nbsp;<strong>Hershey and Chase</strong> and subsequent discoveries all served to prove that DNA is the hereditary material.</div>]]></description>
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         <pubDate>2021-05-01 03:13:41 UTC</pubDate>
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         <title>Wilkins and Franklin(1952)</title>
         <author>3493121</author>
         <link>https://padlet.com/3493121/jnnhqxn172i7lw08/wish/1480439404</link>
         <description><![CDATA[<div>Experiments-<br>Used X rays to photograph DNA <br>Contributions- Photographed the double helix structure of the DNA&nbsp;</div>]]></description>
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         <pubDate>2021-05-01 03:34:55 UTC</pubDate>
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         <title>Watson and Crick(1953)</title>
         <author>3493121</author>
         <link>https://padlet.com/3493121/jnnhqxn172i7lw08/wish/1480447042</link>
         <description><![CDATA[<div>Experiments- Created the model of DNA based on Rosalind's photograph&nbsp;<br><br>Contributions&nbsp;<br>Built the first DNA molecule </div>]]></description>
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         <pubDate>2021-05-01 03:44:26 UTC</pubDate>
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         <title>Meselson and Stahl(1958)</title>
         <author>3493121</author>
         <link>https://padlet.com/3493121/jnnhqxn172i7lw08/wish/1480452656</link>
         <description><![CDATA[<div><br>Experiments- They grew E. coli in a medium containing heavy nitrogen (N-15).&nbsp; They then added the E. coli to a medium containing regular nitrogen (N-14) and observed it over several generations.<br><br><br><br>Contributions- Discovered that DNA was semi-conservative&nbsp;</div>]]></description>
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         <pubDate>2021-05-01 03:51:52 UTC</pubDate>
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