RNA processing.
<P>
   The  primary  transcripts  of  some genes can be spliced in many ways,
   generating different mRNA molecules.
<P>
   In  this example one mRNA molecule ends up with the green exon and the
   other with the purple exon.
<P>
   With  alternative splicing, an organism can produce more than one type
   of polypeptide from a single gene.
<P>
   Review:  <A ClAsS=MID Href="../../../med/Vid/Campbell8e/18_Animations/18_11RNAProcessing_A.swf" oNClick="popurlt('../../../../med/Vid/Campbell8e/18_Animations/18_11RNAProcessing_A.swf');txtcolor('splicing1','gray');return false;" Id=splicing1><iMg sRc="/images/shockwave.gif" aLt='' boRDer=0></A>