Determining chromosomes in sperm

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In the case of humans, this means that parent cells have two chromosomes and gametes have one. B The external genitalia more Testosterone- and dihydrotestosterone-dependent regions of the human male genital system. One pair of chromosomes is different in men and women. These epithelial layers form the sex cords. What is genetic engineering?
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Sex chromosome

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How do XY chromosomes determine sex? | Yahoo Answers

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Sex Chromosomes and Sex Determination

The male gamete, called the spermatozoan, is relatively motile and usually has a flagellum. There are 22 pairs of autosomes non-sex chromosomes and one pair of sex chromosomes. We [are] entering this new era in molecular biology of sex determination where it's a more subtle dosage of genes, some pro-males, some pro-females, some anti-males, some anti-females that all interplay with each other rather than a simple linear pathway of genes going one after the other, which makes it very fascinating but very complicated to study.
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