PG entrance exam CUET PG 2025 Mock Test Life Sciences Fundamental Processes DNA replication, repair and recombination
A mutant DNA polymerase was found to have higher error rate and synthesized only short DNA fragments. In the statements below, potential explanations are given.
A. The 5' to 3' exonuclease activity is compromised.
B. The 3' to 5' exonuclease activity is compromised.
C. The polymerase tends to frequently dissociate from the template.
D. The polymerase is unable to unwind the DNA template during replication.
Which one of the following options represents the combination of all correct statements?
1
A and B
2
C and D
3
A and D
4
B and C