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<p>[summary of week3]</p>
<p>comment :</p> <p>1. do not use no meaning word in ppt slide (eg. student number)</p> <p>2. Dogma = cannot be wrong</p>
<p>central Dogma was demonstrated by "crick". but it was wrong.</p>
<p>3. don't say "that kinds of~". it is confused and not sure.</p>
<p> </p>
<p>4. essay</p>
<p> </p>
<p>5. RNA discovery: </p>
<p><a href="https://en.wikipedia.org/wiki/Nucleic_acid" title="Nucleic acid">Nucleic acids</a> were discovered in 1868 by <a href="https://en.wikipedia.org/wiki/Friedrich_Miescher" title="Friedrich Miescher">Friedrich Miescher</a>, who called the material 'nuclein' since it was found in the <a href="https://en.wikipedia.org/wiki/Cell_nucleus" title="Cell nucleus">nucleus</a>.</p>
<p>It was later discovered that prokaryotic cells, which do not have a nucleus, also contain nucleic acids.</p>
<p>The role of RNA in protein synthesis was suspected already in 1939.</p>
<p><a href="https://en.wikipedia.org/wiki/Severo_Ochoa" title="Severo Ochoa">Severo Ochoa</a> won the 1959 <a href="https://en.wikipedia.org/wiki/Nobel_Prize_in_Medicine" title="Nobel Prize in Medicine">Nobel Prize in Medicine</a> (shared with <a href="https://en.wikipedia.org/wiki/Arthur_Kornberg" title="Arthur Kornberg">Arthur Kornberg</a>) after he discovered an enzyme that can synthesize RNA in the laboratory.</p>
<p>(YJ comment : sorry i told that miescher won the nobel prize. But Ochoa won the nobel prize.)</p>
<p> However, the enzyme discovered by Ochoa (<a href="https://en.wikipedia.org/wiki/Polynucleotide_phosphorylase" title="Polynucleotide phosphorylase">polynucleotide phosphorylase</a>) was later shown to be responsible for RNA degradation, not RNA synthesis.</p>
<p> </p>
