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    Sex in human embryo is determined by:
    Question

    Sex in human embryo is determined by:

    A.

    'X' chromosome of egg

    B.

    'X' or 'Y' chromosome of sperm

    C.

    Only 'Y' chromosome of sperm

    D.

    Health of mother

    Correct option is B

    The human genome is organized into 23 pairs of chromosomes (22 pairs of autosomes and one pair of sex chromosomes), with each parent contributing one chromosome per pair. The X and Y chromosomes, also known as the sex chromosomes, determine the biological sex of an individual: females inherit an X chromosome from the father for a XX genotype, while males inherit a Y chromosome from the father for a XY genotype (mothers only pass on X chromosomes). 

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