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Y Chromosome

The Y chromosome is one of two sex chromosomes. Humans and other mammals have two sex chromosomes, the X and the Y. Females have two X chromosomes in their cells, while males have X and Y chromosomes in their cells. Egg cells contain an X chromosome, while sperm cells contain an X or a Y chromosome. This arrangement means that during fertilization, it is the male that determines the sex of the offspring.

Date:June 12, 2010
Credit:Darryl Leja, NHGRI
Dimensions:2012 x 1391
File Size:578 Kb
Rights:PublicExcept where otherwise noted, this image is in the public domain and may be used, linked or reproduced without permission. If you use an image, please credit the source listed above with a link back to www.genome.gov where possible. Thank you!



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