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In humans, the sex of the child depends on what?

Answer and explanation

Correct answer: On the sex chromosome coming from the father

In the usual human XX–XY system, the mother’s egg carries an X chromosome, whereas the father’s sperm carries either X or Y. Fertilisation by an X-bearing sperm produces XX, generally female; fertilisation by a Y-bearing sperm produces XY, generally male. Thus the paternal sex chromosome determines the chromosomal sex of the child. Option A is correct; food, blood group, and birthplace do not determine it.

Related tags

Sex DeterminationSex ChromosomesHuman GeneticsSex DeterminationHeredity And EvolutionScienceClass 10 Mcq

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