<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Retrovirus - Page 20 - Wikipedia">
<p>
<a accesskey="1" href="page.php?w=retrovirus&amp;p=19">1.Previous</a><br />
<a accesskey="3" href="page.php?w=retrovirus&amp;p=21">3.Next</a>
</p>
<p>their genome is <a href="page.php?w=inheritance">passed on</a> to a following generation. These <a href="page.php?w=endogenous_retrovirus">endogenous retrovirus</a>es (ERVs), contrasted with <a href="page.php?w=exogenous_DNA">exogenous</a> ones, now make up 5-8% of the human genome. Most insertions have no known function and are often referred to as "<a href="page.php?w=junk_DNA">junk DNA</a>". However, many endogenous retroviruses play important roles in host biology, such as control of gene transcription, cell fusion during <a href="page.php?w=placenta">placenta</a>l</p><p>
<a accesskey="1" href="page.php?w=retrovirus&amp;p=19">1.Previous</a><br />
<a accesskey="3" href="page.php?w=retrovirus&amp;p=21">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
