Which of the following enzymes plays an important role in DNA replication?

Question

a)DNA polymerase III

b)DNA helicase

c)DNA ligase

d)DNA primase

e)all of the above

I settled for DNA primase, but I'm still not sure if thats correct.

Answer 1

All the enzymes are important.

Answer 2

They are all important! B&C cut apart and put together while the others help copy! Answer E for sure!

Answer 3

All

Answer 4

the answer is (e).



DNA polymerase III: arrives at the RNA primer and begins replicating the DNA, adding onto the 3'OH left by the primer:

Helicases unwind the DNA duplex during replication

DNA ligases close nicks in the phosphodiester backbone of DNA. They are essential for the joining of Okazaki fragments during replication, and for completing short-patch DNA synthesis occurring in DNA repair process.

DNA primases catalyse the synthesis of the short RNA primers on single stranded (ss) DNA templates that are used by DNA polymerase to initiate the synthesis of Okazaki fragments on the lagging strand.

Hence, all of the above enzymes play an important role in DNA replication.

hope that helps..