Which of these statements is true? a. in humans, the sex chromosomes determine w

ID: 258200 • Letter: W

Question

Which of these statements is true?

a. in humans, the sex chromosomes determine whether the person is female (XY) or male (XX)

b. Sexual life cycles differ between eukaryotes with respect to the relative timing of meiosis and fertilization.

c. At sexual maturity, ovaries produce haploid sperm( ova) by meiosis, each of whcih contains a single X chromosome.

d. Single, haploid (2n) sets of chromosomes in ovum and sperm unite during fertilization, forming a diploid (1n), single-celled zygote.

e. In humans , each of the 20 maternal autosomes has a homologous paternal chromosome.

The only correct statement seems to be

b. Sexual life cycles differ between eukaryotes with respect to the relative timing of meiosis and fertilization.

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