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Sex chromosomes are the genetic elements that define a person's biological sex The determination of sex in humans is primarily governed by the presence of two types of sex chromosomes Learn about the xx and xy chromosomes, the sex determination system, and other chromosome combinations.

The xx/xy system is found in most other mammals, as well as some insects Understand how these chromosomes influence your biology and health. In this 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. The thing is, xx and xy chromosomes aren't cut and dry, either Actually, sex chromosomes and genetic expression vary widely, beyond a penis/vagina or xy/xx binary

Xx and xy with the aforementioned expressions are the most common sex chromosomes and corresponding organs, but they're not the only ones. Furthermore, xx chromosomes occur in homogametic sex while xy chromosomes occur in the heterogametic sex. 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

Just like there is no right way to be a boy or girl, there is no right way to be intersex. 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.

Cracking the code to sex and genetics

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