Human cells contain two sets of chromosomes, one inherited from the mother and one from the father.
Each set has 23 single chromosomes--22 autosomes and a sex-determining chromosome, either X or Y. The set shown here is from a male, since it contains an X and a Y chromosome; if the chromosome set were from a female, it would contain an X and an X.
![Human Chromosomes](https://webarchive.library.unt.edu/eot2008/20090509124158im_/http://www.cancer.gov/images/Documents/2bb8687b-eb2b-4e62-ba30-a0572dee414e/cancer14.jpg)
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