Skip to main content
An official website of the United States government
Español
Government Funding Lapse
Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted.

The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov.

Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

sex cell

(... sel)
An egg cell in females or sperm cell in males. Each mature sex cell contains 23 chromosomes. When an egg combines with sperm, the fertilized egg normally contains a total of 46 chromosomes. Also called gamete and reproductive cell.
Search NCI's Dictionary of Cancer Terms