The genetic sex of an offspring is determined primarily by the sex chromosome contributed by the mother.

Question

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The genetic sex of an offspring is determined by both the sex chromosome contributed by the mother and father. The father can contribute either an X or a Y chromosome, while the mother can only contribute an X chromosome. The combination of these chromosomes determines if the offspring will be male (XY) or female (XX).

The Genetic Sex of an Offspring Is Determined Primarily by the Sex