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Chromosomes

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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.

Current as of: July 31, 2024

Author: Ignite Healthwise, LLC Staff

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This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.

NOTICE: This health information was not created by Columbia University Irving Medical Center and may not necessarily reflect specific CUIMC practices. For medical advice to your personal condition, please consult your doctor. Medical advice disclaimer.