<html> <head> <meta name=ProgId content=PowerPoint.Slide> <meta name=Generator content="Microsoft Macintosh PowerPoint 10"> <link id=Main-File rel=Main-File href="WebQTLDemo.htm"> <link title="Presentation File" type="application/powerpoint" rel=alternate href=WebQTLDemo.ppt> <script> if ( ! top.PPTPRESENTATION ) { window.location.replace( "endshow.htm" ); } </script> </head> <body bgcolor=black text=white> <table border=0 width="100%"> <tr> <td width=5 nowrap></td> <td width="100%"></td> </tr> <tr> <td colspan=1></td> <td align=left colspan=1><font face=Helvetica size=2>Part 2: Mapping upstream modulators or QTLs. A quantitative trait locus is a chromosomal region that harbors one or a few polymorphic gene loci that influence a trait. We are going to be looking for QTLs that modulate the steady state expression level of App in the adult mouse forebrain.</font><br> </td> </tr> </table> </body> </html>