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.

The human Y chromosome, responsible for determining male sex, has been gradually shrinking over millions of years. This ...

Females (XX) carry twice as many X-linked genes on their sex chromosomes as males (XY). How do cells control gene expression to manage this potentially lethal dosage problem? A prime example of X ...

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 ...

The short-beaked echidna (Tachyglossus aculeatus)  is one of Australia’s most iconic animals. Belonging to a unique group of ...

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 ...

The short-beaked echidna (Tachyglossus aculeatus) is one of Australia's most iconic animals. Belonging to a unique group of ...

Conventional investigations of the genetic contributors to Alzheimer's disease (AD) risk and progression have ignored the role of the X-chromosome, primarily due to technical analysis limitations.

A team of Japanese scientists has discovered the gene that determines the fur color of calico cats, which are characterized ...