Learn about the xx and xy chromosomes, the sex determination system, and other chromosome combinations. Learn how the x and y chromosomes carry instructions that decide our biological sex Find out how the sry gene on the y chromosome and the x chromosome differences affect male and female development. 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.
46,xx testicular disorder of sex development, also called xx male syndrome, is a condition in which individuals with two x chromosomes in each cell, the pattern normally found in females, have a male appearance. 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.
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