Question

Exposure of an organism to UV rays causes

• A. Photodynamic action
• B. Formation of thymidine
• C. Splitting of H-bonds of DNA
• D. Splitting of phosphodiester bonds

Answer 1

Answer: (C)

Splitting of H-bonds of DNA

The UV radiations can cause mutation in the cells by altering the DNA by the formation of thymine dimers or split the hydrogen bonding. This results in distortion in the structure of DNA and the cell dies due to malfunctioning of the genetic material.

Thus, the correct answer is option C.