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 ...

A gene is a basic unit of heredity, the means by which traits get passed from one generation to the next, and genetics is the study of how these biological traits are inherited. A little over half of ...

One gene causes one trait or a specific illness. When doctors use genetics, it's usually to try to identify a disease-causing ...

When couples have trouble conceiving a baby or lose a pregnancy, they often undergo routine tests, which can turn up a shock: ...

The X chromosome is associated with important measures of the brain in aging and Alzheimer's disease (AD) in sex-specific ways, new research suggests. In a cohort study, differential gene expression ...