<P> DNA polymerase has 5 ' - 3 ' activity . All known DNA replication systems require a free 3 ' hydroxyl group before synthesis can be initiated ( note : the DNA template is read in 3 ' to 5 ' direction whereas a new strand is synthesized in the 5 ' to 3 ' direction -- this is often confused ) . Four distinct mechanisms for DNA synthesis are recognized : </P>
<P> DNA polymerase has 5 ' - 3 ' activity . All known DNA replication systems require a free 3 ' hydroxyl group before synthesis can be initiated ( note : the DNA template is read in 3 ' to 5 ' direction whereas a new strand is synthesized in the 5 ' to 3 ' direction -- this is often confused ) . Four distinct mechanisms for DNA synthesis are recognized : </P>
dna polymerase assembles new strands in what direction
dna polymerase assembles new strands in what direction
5 ' - 3 '
5 ' - 3 '