(65), enrolled males with XXY, XYY, and XXYY and females with XXX between the ages of 6 and ... from 9 to 18 years old) with sex chromosome trisomies. The patients (40) and non-clinical group (100) ...

Unlike men, who carry one X and one Y chromosome, women have two X chromosomes in each cell. However, one of the two X chromosomes is effectively silenced. It folds into a compact structure known ...

The Y chromosome can disappear over time in human males, which may introduce a number of health problems. While the exact trigger for such degeneration is unknown, environmental factors can play a ...

Jacobs and her colleagues working at Western General Hospital in Edinburgh knew that a number of mentally defective men with a double dose of both sex chromosomes, or XXYY, had been found in ...

Chromosomes are tightly coiled structures in each of your cells that contain DNA, the code for all life. DNA is organized in segments on chromosomes called genes. Humans typically have 46 ...

Typically, females have two X chromosomes while males have an X and a Y. In birds and butterflies, males have two Z chromosomes, while females have one Z and one W chromosome. “It is mind ...

The Y chromosome in primates — including humans — is evolving much more rapidly than the X chromosome, new research on six primate species suggests. For instance, humans and chimpanzees share ...

Approximately 1 out of 2,000 children are born with sex or reproductive anatomy considered atypical, and 1 out of 1,666 people have nonbinary chromosomes (XXY, XO, XYY, XXYY, or mosaic).

A chromosome is a DNA molecule that contains genetic material. Sex chromosomes are chromosomes that affect your sexual anatomy and reproductive development. Most of us were raised with the idea ...