Question

What is the role of DNA helicase during DNA replication?
to unwind the duplex DNA
to attach primers to the replicating strands
to add bases in the sugar-phosphate backbone

Answer 1

1)The primary role is to add the A's, C's, T's and G's to the elongating new strands of DNA. (polymerization of dNTP's)

(2) However, it also proofreads the new copies,

(3) AND changes the RNA primers used to initiate replication into DNA. (short single stranded RNA primers find the start points of DNA replication, but they need to be converted into DNA before the pieces can be ligated together.

Answer 2

is 2 or 3

Answer 3

b i would say

Answer 4

I believe it would be A