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Question

A zygote which has an X chromosome inherited from the father will become

A
Boy
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B
Girl
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C
Either girl or boy
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D
Cannot be predicted
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Solution

The correct option is B Girl
Sex determination seen in humans is XY sex determination. Ovum carries X chromosome, whereas sperm can carry either X or Y chromosome. The genetic makeup of a female is XX and genetic makeup of male is XY. Therefore, if the zygote is formed by receiving the X chromosome from the father, the resulting zygote will be a female.

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