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 chromosomes ...

Genes are segments of DNA (deoxyribonucleic acid) that are located inside every human cell. The DNA inside each cell is tightly coiled in structures called chromosomes. Each chromosome contains a ...

Researchers have identified a sex chromosome in the California two-spot octopus. This chromosome has likely been around for 480 million years, since before octopuses split apart from the nautilus on ...

Men are generally taller than women, with an average height gap of about five inches. While hormonal differences have often been credited for this, new research points to genetic factors—particularly ...

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. When you purchase through links on our site, we ...

* Evolutionary gene loss has steadily reduced the Y chromosome to a small set of essential genes * Gene// conversion may increase variation but does not restore lost genetic function * Future sex ...