WBCS.LIVE practice question

Which of the following professional(s) are more likely to run the risk of a permanent change in their cell’s DNA? 1. Researchers using carbon 14 isotope 2. X-ray technician 3. Coal miner 4. Dyer and painter Select the correct answer by using the codes given below.

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Only 2
  2. 1, 2 and 3
  3. 1, 2 and 4
  4. 1, 3 and 4

Correct answer and explanation

Correct answer: Only 2