Multiple choice

Thymidine dimers are usually the consequence of

  1. ultraviolet light exposure

  2. radiation exposure

  3. chemical exposure

  4. advanced paternal age

  5. chemotherapy

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Thymidine dimers are a pair of abnormally chemically-bonded adjacent thymine bases in DNA, resulting from damage by ultraviolet irradiation.