Learn about the xx and xy chromosomes, the sex determination system, and other chromosome combinations. Learn how this system works in humans, mammals, insects, plants and other species. Sex chromosome, either of a pair of chromosomes that determine whether an individual is male or female The sex chromosomes of human beings and other mammals are designated by scientists as x and y In humans the sex chromosomes consist of one pair of the total of 23 pairs of chromosomes. Learn about the diversity of sex chromosomes and how they affect physical features and gender identity
Explore examples of intersex variations, such as xxy, xo, cah and ovotestes. This web page explains why humans have two types of sex chromosomes, x and y, and why men do not have yy pairs It also discusses the genes and functions of x and y chromosomes, and the effects of xyy syndrome. Learn how sex chromosomes affect your sexual anatomy and reproductive development Find out about the different types of sex chromosomes, variations, and intersex conditions. The extraordinary complexity of sex determination a host of factors figure into whether someone is female, male or somewhere in between
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