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:

• A. 1, 2 and 4
• B. 1, 2 and 3
• C. 1 and 2
• D. 1, 3 and 4

Answer 1

The correct option is A 1, 2 and 4

X-Ray technique, C14 and Dyer technique is a very important technique for a permanent change in DNA. But in coal miner, C14 amount is very very less. So, there is no risk of change in DNA.

So, the correct answer is '1, 2 and 4'.