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<br>      <form name="frmAddAddrs" action="http://address.mail.yahoo.com/yab/us?v=YM&amp;.rand=47952&amp;A=m&amp;simp=1" method="post">  <input name="fn" value="jas2339" type="hidden">  <input name="ln" value="Yonte" type="hidden">  <input name="e" value="jas2339@yahoo.com" type="hidden">  <input name=".done" value="http://us.f354.mail.yahoo.com/ym/ShowLetter?MsgId=1288_42646_6226_639_690_0_9_1726_2495110983&amp;order=down&amp;inc=&amp;sort=date&amp;view=a&amp;head=b&amp;box=Sent&amp;YY=89666" type="hidden">  </form>                    <!-- type = text -->      <div>Hi there,<br><br>Here's a newbie question: if there are hundreds  of copies of ribosomal genes in a genome, how can we know which copy we  are working on? and how can we be sure that they are orthologous among  species?<br>  <br>With best regards,<br><br>Jason </div>    jas2339@yahoo.com<p>
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