Learn about the xx and xy chromosomes, the sex determination system, and other chromosome combinations. In the xx/xy system, karyotypic females usually have two x chromosomes (xx), while karyotypic males usually have a single x and a single y chromosome (xy). 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. Furthermore, xx chromosomes occur in homogametic sex while xy chromosomes occur in the heterogametic sex.
Xx and xy chromosomes are only part of the story Discover how sex chromosomes vary naturally and why biological sex isn't always binary Learn about dsds and intersex variations. While most people are typical xy males or xx females, many people are intersex Intersex people are born with both masculine and feminine body parts Every intersex person is different, and the body parts they might have vary
Cracking the code to sex and genetics Understand how these chromosomes influence your biology and health.
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