Friday, 24 September 2021

ENZYME INVOLVED IN DNA REPLICATION

 ENZYME                       FUNCTION IN REPLICATION 

1- Topoisomerase   -  Initiation of unwinding of helix . It detangles the coils and super coils .

2 - Helicase            - Breaks the hydrogen bonds between two stranded DNA becomes single stranded. 

3 - Single stranded- These bind to the single strands of DNA to prevent hydrogen bonding and  reforming       binding proteins  of  duplex .

4 - DNA polymerases- DNA pol-III addition of nucleotides to the newly synthesized DNA strand  DNA                                            pol-I proof freading .

5 - Primase                 - Synthesis of primer .

6 - DNA ligase          - Joins the DNA by forming phosphodiester bond .

       

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