Mrs. Verma has an autosomal gene pair 'Bb' and she contain x-linked gene 'd'. What is the percentage of gamete, which contain 'bd' genes?

1/2 or 50%

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1/4 or 25%

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3/4 or 75%

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1 or 100%

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Solution

The correct option is B 1/2 or 50%
It has been given, that the gametes produced by a female of genotype Bb is to be investigated. In addition to it, it is also given that she contains an X-linked gene 'd'. Thus, when we analyze the sex chromosome combination of human females - XX. Thus, the female will have 50% chance of bearing ovum with Bd genes and another 50% with bd genes.

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