NEET Biology question

Not in NEET syllabus

The effect of today's radioactive fall out will probably be more harmful to children of future generation than to children now living because

(A)Infants are more susceptible to radiations
(B)Susceptibility to radiation increase with age
(C)Mutated genes are frequently recessiveCorrect
(D)Contamination of milk supply is not cumulative

Answer: (C)

Solution

Radiation-induced mutations are predominantly recessive, so they remain phenotypically hidden (masked by the normal dominant allele) in the exposed generation and in several subsequent generations, only appearing when two carriers of the same recessive mutant allele eventually produce homozygous recessive offspring;

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Question ID VK-119808