Synonym(s)
Definition(s)
- A chromosome involved in sex determination. [SGD:elh]
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Definition from: Gene Ontology via Unified Medical Language System
at the National Library of Medicine
- A sex chromosome is a type of chromosome that participates in sex determination. Humans and most other mammals have two sex chromosomes, the X and the Y. Females have two X chromosomes in their cells, while males have both X and a Y chromosomes in their cells. Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome. This arrangement means that it is the male that determines the sex of the offspring when fertilization occurs.
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Definition from: Talking Glossary of Genetic Terms from the National Human Genome Research Institute
- The X or Y chromosome in human beings that determines the sex of an individual. Females have two X chromosomes in diploid cells; males have an X and a Y chromosome. The sex chromosomes comprise the 23rd chromosome pair in a karyotype.
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Definition from: Human Genome Project Information
at the U.S. Department of Energy
- The chromosomes that determine the sex of an organism. Human females have two X chromosomes; males have one X and one Y.
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Definition from: Office of Rare Diseases
at the National Institutes of Health
Related discussion in the Handbook
See also Understanding Medical Terminology.
