COVID-19: Vaccines, boosters, testing, and visitor guidelines. Please use ER for emergencies only. As significantly higher COVID surge looms, we ask for your help in preventing spread of the disease.

Chromosomes

Chromosomes are part of most types of cells in the body. Each chromosome has a single molecule of DNA.

Humans have 46 chromosomes (23 pairs). Half of a person's chromosomes come from the mother and half from the father. One of the 23 pairs are the sex chromosomes, X and Y. A female inherits an X chromosome from each birth parent (XX). A male inherits an X chromosome from their mother and a Y chromosome from their father (XY).

Changes in chromosomes can cause problems with how the body works. They can cause a genetic condition, such as Down syndrome.

 
 

PeaceHealth endeavors to provide comprehensive health care information, however some topics in this database describe services and procedures not offered by our providers or within our facilities.