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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.

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this information does not replace the advice of a doctor. healthwise, incorporated, 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 and privacy policy. to learn more about healthwise, visit healthwise.org. © 1995-2022 healthwise, incorporated. healthwise, healthwise for every health decision, and the healthwise logo are trademarks of healthwise, incorporated.

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