Restriction fragments.
<P>
   A  restriction  enzyme (EcoRI in this example) makes staggered cuts at
   restriction sites of a DNA molecule.
<P>
   The resulting fragments have complementary sticky ends.
<P>
   If  the  fragments  are  from  different  species,  recombinant DNA is
   produced with the gaps sealed with DNA ligase.
<P>
   Review:  <A ClAsS=ACT Href="http://media.pearsoncmg.com/bc/bc_campbell_biology_7/media/activities/load.html?20&amp;B" oNClick="popact('http://media.pearsoncmg.com/bc/bc_campbell_biology_7/media/activities/load.html?20&amp;B');txtcolor('restriction_enzyme1','gray');return false;" Id=restriction_enzyme1><iMg sRc="/images/tutorial.gif" aLt='' boRDer=0></A>