Nucleic Acids


   
 
Leading Strand
 
The enzyme forms one new strand in a continuous stretch in the 5'-3' direction and is called leading strand.
 
On the other parent strand, the enzyme forms short stretches of DNA once again in the 5'-3' direction starting from an RNA primer. These short DNA fragments are referred to as Okazaki fragments and because this strand is synthesised and put together in small pieces it is referred to as lagging strand. These short pieces are joined together by the enzyme DNA ligase.
 
 
         Continuous and Discontinuous Replication of DNA
 
 
     
   
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