Question

Please answer this question. Blue eye colour in human is recessive to brown eye colour. The expected children of a marriage between a blue-eyed woman and a brown-eyed male who had a blue-eyed mother are likely to be- (A) all blue-eyed (B) three blue-eyed and one brown-eyed (C) all brown-eyed (D) one blue-eyed and one brown-eyed

Answer 1

Answer:

(c) all brown eyed .

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Answer 2

Explanation:

Brown eyed: B

Blue-eyed: b

Blue-eyed mother of male will have genotype as bb.

Since male is brown eyed so his genotype will be: Bb

Blue eyed woman with whom he is married: bb

Cross between them: Bb * bb produces children with blue-eyed and brown-eyed in the ratio: 1: 1

So, the correct option is 'One blue-eyed and one brown-eyed'.