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Sex chromosomes are the genetic elements that define a person's biological sex Typically, females have two of the same kind of sex chromosome (xx), and are called the homogametic sex. 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 In this system, the sex of an individual usually is determined by a pair of sex chromosomes In this system, females have two of the same kind of sex chromosome (xx), while males have two distinct sex chromosomes (xy).
Furthermore, xx chromosomes occur in homogametic sex while xy chromosomes occur in the heterogametic sex.
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. 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. 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.
Sex chromosomes determine an individual's biological sex Females have xx, while males have xy How do sex chromosomes work Sex chromosomes carry genes that dictate sexual development
The presence of a y chromosome generally leads to male characteristics
Can sex chromosome abnormalities occur?
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