Which statement about sex determination in humans is true?

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Multiple Choice

Which statement about sex determination in humans is true?

Explanation:
Sex determination in humans is controlled by the sex chromosomes. Humans have two sex chromosomes, with females typically having XX and males XY. The Y chromosome carries genes that trigger the development of male characteristics; without a Y, the embryo develops along the female pathway. Autosomes influence many traits but do not set biological sex. Mitochondrial DNA, inherited from the mother, does not determine sex. Chloroplast DNA is found in plants, not humans, so it has no role here. Therefore, sex chromosomes determine sex.

Sex determination in humans is controlled by the sex chromosomes. Humans have two sex chromosomes, with females typically having XX and males XY. The Y chromosome carries genes that trigger the development of male characteristics; without a Y, the embryo develops along the female pathway. Autosomes influence many traits but do not set biological sex. Mitochondrial DNA, inherited from the mother, does not determine sex. Chloroplast DNA is found in plants, not humans, so it has no role here. Therefore, sex chromosomes determine sex.

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