Recessive Gene

Definition: Recessive Gene

Recessive Gene

Noun

1. Gene that produces its characteristic phenotype only when its allele is identical; "the recessive gene for blue eyes".

Specialty Definitions: Recessive Gene

Domain	Definitions
Health	A gene that is phenotypically expressed only when homozygous. (references)
Source: compiled by the editor from various references; see credits.

Specialty Definition: Recessive gene

In genetics, the term recessive gene refers to the an allele that causes a phenotype that is only seen in a homozygous genotype. Strictly, it is the phenotype (or trait) which is recessive, not the gene.

That is dominance/recessiveness refers to phenotype, not genotype. Consider sickle cell anemia as an example. The sickle cell genotype is caused by a single base pair change in the beta-globin gene: normal=GAG (glu), sickle=GTG (val). There are several phenotypes associated with the sickle genotype: 1) anemia (a recessive trait), 2) blood cell sickling (partially dominant), 3) altered beta-globin electrophoretic mobility (codominant), and 4) resistance to malaria (dominant). This example demonstrates that one can only refer to dominance/recessiveness with respect to individual phenotypes.

See also:

Dominant gene
Incomplete dominance
Dominance relationship

Frequency of Internet Keywords: Recessive Gene

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.

Modern Translations: Recessive Gene

Language		Translations for "recessive gene"; alternative meanings/domain in parentheses.
French		gène récessif. (various references)

German		rezessives Gen. (various references)

Italian		gene recessivo. (various references)

Pig Latin		ecessiveray enegay
Source: compiled by the editor from various translation references.

Anagrams: Recessive Gene

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "c-e-e-e-e-e-g-i-n-r-s-s-v"
	-4 letters: energises, recessing, recessive, regencies, sceneries, vergences.
	-5 letters: eeriness, energies, energise, eserines, generics, greenies, greisens, inverses, nereises, receives, reseeing, revenges, scrieves, services, servings, severing, veneries, vergence, versines.
Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro.