Suppose that there is a new DNA polymerase that can add nucleotides at both the 5' and 3' ends of DNA strands.Otherwise, this new DNA polymerase functions in the same way as other DNA polymerases.With such a DNA polymerase, which molecule(s) would not be required?
A) Primase
B) DNA helicase
C) DNA ligase
D) dNTPs
E) A sliding DNA clamp

Question

Quizplus · Accepted Answer

DNA ligase is required to seal the nicks between Okazaki fragments during DNA replication. However, with a DNA polymerase that can add nucleotides at both the 5' and 3' ends of DNA strands, there would be no need for Okazaki fragments or nicks. Therefore, DNA ligase would not be required. The other molecules listed (primase, DNA helicase, dNTPs, and a sliding DNA clamp) are still necessary for DNA replication to occur.

Suppose That There Is a New DNA Polymerase That Can