Each human cell contains 23 pairs of chromosomes that carry DNA within their nucleus. The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair.

The executive order’s definitions of male and female left room for interpretation contrary to the spirit of the order.

The human Y chromosome ... X chromosome during meiosis (the process of forming sperm and egg cells). Recombination allows chromosomes to exchange genetic material, repair mutations, and maintain ...

President Trump’s executive order recognizing only two sexes — male and female — includes language that is biologically ...

The X contains more genes related to brain function than does any other chromosome. “The X chromosome may be a treasure trove of genes that influence cognition, and these could be therapeutic targets, ...

Researchers at The University of Hong Kong (HKU) have made an exciting discovery about how human cells protect DNA during ...

1 The number of chromosomes in the human cell includes 46, with 23 pairs, one set being inherited from the egg provided by the biological mother and the other set of 23 chromosomes being inherited ...

A team of investigators from Dana-Farber Cancer Institute, The Broad Institute of MIT and Harvard, Google, and Columbia ...

Science has revealed some of the secrets of the X chromosome, but many remain. In humans, female cells contain two X ...

Female mammals typically carry two X chromosomes — one from each parent — and a new study suggests that the maternal X is linked to faster brain aging.

And our chromosomes, although safely ensconced within ... several times over during a person’s lifespan. In cultures of human cells, numtogenesis happens over days to weeks.

Researchers have made an exciting discovery about how human cells protect DNA during cell division, offering new insights into combating diseases such as cancer. The research uncovers the vital role ...