Question

Which form of Xeroderma pigmentosum is observed in patients who cannot synthesize functional polymerase Η?

(a) XP III

(b) XP IV

(c) XP V

(d) XP VI

This question was addressed to me by my school principal while I was bunking the class.

Origin of the question is Between Replication and Repair in division DNA Replication and Repair, Cellular Reproduction of Cell Biology

Answer 1

The correct answer is (c) XP V

To explain: Patients afflicted with a variant of Xeroderma pigmentosum, XP V are susceptible to developing skin cancer due to sun exposure. It is discovered that the gene encoding replicative polymerase Η.