6, 4 PP are brought about by which type of mutagen? A. Methylase

6-4-pp-are-brought-about-by-which-type-of-mutagen-a-methylase

6, 4 PP are brought about by which type of mutagen?

A. Methylase

B. Phosphatase

C. Radiation

D. Base Analogue

This question was addressed to me during a job interview.

This interesting question is from Repair of DNA Damage: MMR, BER in chapter DNA Mutation, DNA Repair, Transposable Elements of Cytogenetics

The correct option is C. Radiation

Easiest explanation: 6,4 Pyrimidine photoproducts are formed when the DNA is exposed to strong radiation like UV or X-rays. These can be repaired by BER.