sex-linked gene

a gene carried on a sex chromosome (X or Y); the term has been used synonymously with X-linked gene (q.v.), because the human Y chromosome carries so few genes other than those determining maleness, but is now little used to avoid ambiguity.

Medical dictionary. 2011.

Look at other dictionaries:

  • sex-linked — sex′ linked adj. 1) gen (of a gene) located in a sex chromosome 2) gen (of a character) determined by a sex linked gene • Etymology: 1910–15 …   From formal English to slang

  • sex-linked — See sex linkage. * * * sex linked adj 1) located in a sex chromosome <a sex linked gene> 2) mediated by a sex linked gene <a sex linked character> * * * adj. describing genes (or the characteristics controlled by them) that are… …   Medical dictionary

  • sex-linked — adjective Date: 1912 1. located on a sex chromosome < a sex linked gene > 2. mediated by a sex linked gene < a sex linked character > …   New Collegiate Dictionary

  • sex-linked disorder — A genetic defect, usually due to a gene on the unpaired portion of the X chromosome. Recessive X linked alleles are fully expressed in the heterogametic sex because they can have only one copy of the gene. Thus X linked mutant disorders are more… …   Dictionary of molecular biology

  • sex-linked — /seks lingkt /, adj. Genetics. 1. (of a gene) located in a sex chromosome. 2. (of a character) determined by a gene located in a sex chromosome. [1910 15] * * * …   Universalium

  • sex-linked trait — an inherited trait determined by a gene on a sex chromosome, and therefore having a different pattern of expression in males and females; the term is usually used to denote an X linked trait …   Medical dictionary

  • sex-linked character — A character controlled by a gene located in a sex chromosome; see sex chromosome …   Dictionary of invertebrate zoology

  • sex-linked inheritance — the pattern of inheritance shown by genes carried on a sex (X or Y) chromosome, differing for males and females. See also under gene and trait …   Medical dictionary

  • sex-linked disorder — noun any disease or abnormality that is determined by the sex hormones hemophilia is determined by a gene defect on an X chromosome • Hypernyms: ↑chromosomal aberration, ↑chromosomal anomaly, ↑chrosomal abnormality, ↑chromosonal disorder •… …   Useful english dictionary

  • Y-linked gene — A gene on the Y chromosome. (Y linkage is analogous to X linkage (the presence of a gene on the X chromosome) in that it says a gene is on one of the sex chromosomes.) It has often been said that little is known about genes that may be Y linked.… …   Medical dictionary


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