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SEX CHROMOSOME
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| IPA (US): |  |
Dictionary entry overview: What does sex chromosome mean?
• SEX CHROMOSOME (noun)
The noun SEX CHROMOSOME has 1 sense:
1. (genetics) a chromosome that determines the sex of an individual
Familiarity information: SEX CHROMOSOME used as a noun is very rare.
Dictionary entry details
Sense 1
Meaning:
(genetics) a chromosome that determines the sex of an individual
Classified under:
Nouns denoting body parts
Context example:
mammals normally have two sex chromosomes
Hypernyms ("sex chromosome" is a kind of...):
chromosome (a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order)
Domain category:
genetic science; genetics (the branch of biology that studies heredity and variation in organisms)
Hyponyms (each of the following is a kind of "sex chromosome"):
X chromosome (the sex chromosome that is present in both sexes: singly in males and doubly in females)
XX ((genetics) normal complement of sex chromosomes in a female)
XXX ((genetics) abnormal complement of three X chromosomes in a female)
XXY ((genetics) abnormal complement of sex hormones in a male resulting in Klinefelter's syndrome)
XY ((genetics) normal complement of sex hormones in a male)
XYY ((genetics) abnormal complement of sex hormones in a male who has two Y chromosomes)
Y chromosome (the sex chromosome that is carried by men)
Context examples
Normally 46 chromosomes, including two sex chromosomes are found in the nucleus of human cells.
(Human Chromosome, NLM, Medical Subject Headings)
A sex chromosome disorder caused by the presence of an extra X chromosome in the male karyotype.
(Klinefelter syndrome, NCI Thesaurus)
The banding patterns lend each chromosome a distinctive appearance so the 22 pairs of human non-sex chromosomes and the X and Y chromosomes can be identified and distinguished without ambiguity.
(Chromosome Banding, NCI Thesaurus)
The female sex chromosome, being the differential sex chromosome carried by half the male gametes and all female gametes in man and other male-heterogametic species.
(Chromosome X, NLM, Medical Subject Headings)
The sex chromosome that is present in both sexes: singly in males and doubly in females.
(Chromosome X, NCI Thesaurus)
A rare sex chromosome abnormality in which a female child has 3 extra X chromosomes.
(Penta X Syndrome, NCI Thesaurus)
The male sex chromosome, being the differential sex chromosome carried by half the male gametes and none of the female gametes in man and in some other male-heterogametic species in which the homologue of the X chromosome has been retained.
(Chromosome Y, NCI Thesaurus)
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