The effect of today's radioactive fallout will probably be more harmful to children of future generations than to children now living because:
Correct answer: D. Mutated genes are frequently recessive
- A. Contamination of milk supply is not cumulative
- B. Infants are more susceptible to radiation
- C. Susceptibility to radiation increases with age
- D. Mutated genes are frequently recessive
Explanation
Radiation-induced mutations may be recessive and remain hidden in the present generation, then appear when inherited by later generations. This makes genetic effects of fallout potentially more harmful to descendants.
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