Positive selection in human brain genes</tile> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta http-equiv="description" content="Positive selection in human brain genes"> <meta http-equiv="keywords" content="Positive,selection,in,human,brain,genes"> </head> <body> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="10" height="39"> </td> <td width="99%" height="39"> <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="16%"><a href="http://inttranews.inttra.net"><img src="http://inttranews.inttra.net/images/inttranews_grey_2.jpg" width="192" height="37" border="0"></a></td> <td width="50%" valign="middle"> <p><font face="Arial, Helvetica, sans-serif" size="2"><b><font color="#CCCCCC" face="Verdana, Arial, Helvetica, sans-serif" size="1">KNOW.<br> HOW.</font></b></font> </p> </td> <td width="34%" align="right" valign="top"><font face="Verdana, Arial, Helvetica, sans-serif" size="1" color="#666666">16-09-2005</font></td> </tr> </table> </td> </tr> <tr> <td width="10"> </td> <td width="99%" > </td> </tr> <tr> <td width="10"> </td> <td width="99%" > <table width="100%" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="100%"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> <b>Positive selection in human brain genes</b></font> </td> </tr> <tr> <td width="100%"> </td> </tr> <tr> <td width="100%"> <img src="http://inttranews.inttra.net/img_news/img_fNLcoJlIDJNW8eKyOlDZ_0.jpeg" align="left" vspace="5" hspace="5" ><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Connecticut, USA (Science): The better we understand the human genome, the more we shall understand the nature of language development, hence the interest of this article: “Genes that are expressed in more tissues have diverged less between species than genes expressed in fewer tissues, which suggests neutral evolution with negative selections, but genes on the X chromosome that are expressed in testes showed evidence of positive selection. Surprisingly, genes expressed in the brain have changed more on the human lineage than on the chimpanzee lineage, not only in terms of gene expression but also in terms of amino acid sequences.” <br> <br>For more information, please visit: <br><a href="http://www.sciencemag.org/content/vol309/issue5742/twis.shtml" target="blank">www.sciencemag.org/content/vol309/issue5742/twis.shtml</a> <br></font></td> </tr> </table> </td></tr> </table> <script type="text/javascript"></script> <script type="text/javascript" src="<http://pagead2.googlesyndication.com/pagead/show