Question

The effect of today's radioactive fallout will probably be more harmful to children of future generation than to present day children because

• A. Infants are more susceptible to radiations
• B. Susceptibility to radiations increase with age
• C. Mutated genes are usually recessive
• D. All of the above
  

Answer 1

Answer: (C)

Mutated genes are usually recessive

The radioactive fallout can cause near-immediate effect by killing cells and damaging tissue. But radioactive fallout can also cause long term effect by causing mutations in the DNA if living cells. These mutated genes are usually recessive and so they can appear anytime in our future generations. That is the reason why effect of radioactive fallout probably will be more harmful to children of future generations than the present.

So, the correct answer is 'Mutated genes are usually recessive'.