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Analyze the pedigree chart of families A and B given below and select the correct option.
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The correct answer is:
In family A, both the parents are heterozygous dominant for recessive disorder
In family A, if both the parents are homozygous recessive, both should be diseased and should have 100% diseased progeny. In family B, if both parents are homozygous dominant, they would not have got the recessive disease in the first place. In family B, if both are heterozygous recessive, then also they would not have got the disease, neither 80% of progeny would be diseased.
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