Learn about the xx and xy chromosomes, the sex determination system, and other chromosome combinations. In this system, the karyotypic sex of an individual is usually determined by a pair of sex chromosomes Typically, karyotypic females have two of the same kind of sex chromosome (xx), and are called. The female has two x chromosomes, and all female egg cells normally carry a single x. You probably remember this legendary illustration in a biological textbook Sex chromosome (chromosome) is a microscope, female is xx and male is xy.
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. Without an sry, an embryo will develop as a female instead of as a male whether it has a y chromosome or not Beyond the binary there are more than just two possible sexes for which the chromosomes can carry instructions While most people are typical xy males or xx females, many people are intersex.
Next to that is 46xx, meaning a person with 46 chromosomes of which two are xx These individuals would develop as female On the far right is 46xy, a person with 46 chromosomes of which two are xy These individuals would develop as male.
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