The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair. They determine the biological sex, reproductive organs, and sexual characteristics that develop in a person.

but one pair, the sex chromosomes, is different. Typically, females have two X chromosomes (XX), whereas males have one X chromosome and one Y chromosome (XY). Sex chromosomes not only influence a ...

Every person, male or female, has 22 matching pairs of chromosome—one inherited from each parent—but the 23rd pair is different. This unmatched pair, known as the X and Y sex chromosomes ...

Why are the human sex chromosomes called “X” and “Y,” while the other 22 chromosomes are identified only by numbers? The answer begins in the late 1800s, when insect gonad cells, whose large ...

Human biological sex is determined by the sex chromosomes X and Y. In most cases, females possess two X chromosomes, while males have one X and one Y. However, there is some evidence that the Y ...

22 autosomes and one pair of sex chromosomes—XX in females and XY in males. The Y chromosome, significantly smaller than its X counterpart, harbors only about 50 to 200 genes compared to the X ...

A study conducted by a research team at the Crick Institute identified important genes on the Y chromosome that regulate ...