Correct option is A
The correct answer is (a).
- DNA polymerase δ (A) is primarily responsible for synthesizing the lagging strand (iii).
- DNA polymerase ε (B) is involved in synthesizing the leading strand (iv).
- DNA polymerase β (C) is involved in base excision repair (i), where it plays a role in the repair of single-strand DNA damage.
- DNA polymerase η (D) is involved in the thymine dimer bypass (ii), helping the cell to bypass the lesions caused by UV radiation-induced thymine dimers.
Incorrect options-
Option (b) incorrectly swaps the roles of δ and ε polymerases.
Option (c) misassigns all the functions.
Option (d) incorrectly assigns polymerase β to thymine dimer bypass instead of base excision repair.
