State true or false. Mother contributes only ‘X’ chromosome while father can contribute either ‘X’ or ‘Y’ chromosome and hence decides the sex of the baby.
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The correct option is A True Human males have 44 + XY chromosome in their cells so they can produce 22 + X or 22 + Y chromosomes as gametes and females have 44 + XX chromosomes they can only produce 22 + X chromosomes as the only gametes.