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Sex chromosomes
1) A chromosome involved in sex determination.
2) 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 fertilisation occurs.
3) 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.
4) The chromosomes that determine the sex of an organism. Human females have two X chromosomes; males have one X and one Y.
- Part of Speech: noun
- Synonym(s):
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- Industry/Domain: Health care
- Category: Genetic disorders
- Company: National Library of Medicine
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