Which describes a mature sperm in terms of the number of chromosomes it contributes during reproduction?

A mature sperm is a gamete, so it has one set of chromosomes rather than two; this is called haploid. In humans, that set contains 23 chromosomes. At fertilization, the sperm’s 23 chromosomes join the egg’s 23 to restore the diploid total of 46, so the correct choice is “haploid with 23 chromosomes.”

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