Dominant Gene

Definition: Dominant Gene

Dominant Gene

Noun

1. Gene that produces the same phenotype in the organism whether or not its allele identical; "the dominant gene for brown eyes".

Specialty Definition: Dominant gene

In genetics, the term dominant gene refers to the an allele that causes a phenotype that is seen in a heterozygous genotype. Strictly, it is the phenotype (or trait) which is dominant, 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:

Recessive gene
Incomplete dominance
Dominance relationship

Non-Fiction Usage: Dominant Gene

Subject	Topic	Quote
Health		Autosomal dominant disorders are caused by a single dominant gene. One of the parents is not just a carrier, but has the disease. (references)
		In other cases, TSC is an autosomal dominant disorder, which means that the disease is carried by a dominant gene. In those cases where it is passed from parent to child, only one parent needs to have the gene in order to produce the disease in a child. (references)
Source: compiled by the editor from ICON Group International, Inc.; see credits.

Frequency of Internet Keywords: Dominant Gene

Modern Translation: Dominant Gene

Language		Translations for "dominant gene"; alternative meanings/domain in parentheses.
Danish		dominant gen. (various references)

Dutch		dominant gen. (various references)

Finnish		dominoiva geeni, vallitseva geeni. (various references)

French		gène dominant. (various references)

German		dominantes Gen. (various references)

Greek		κυρίαρχο γονίδιο, επικρατές γονίδιο. (various references)

Italian		gene dominante. (various references)

Pig Latin		ominantday enegay

Spanish		gen dominante. (various references)
Source: compiled by the editor from various translation references.

Anagrams: Dominant Gene

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "a-d-e-e-g-i-m-n-n-n-o-t"
	-2 letters: denegation, denominate, emendating, emendation, nonmeeting.
	-3 letters: demeaning, dementing, geminated, menadione, mentioned, neatening, nominated.
	-4 letters: adeeming, amending, amidogen, anointed, antigene, antinode, dementia, demonian, demoting, denoting, dominant, dominate, donating, emending, enneagon, geminate, magneton, mignonne, montaged, negation, nematode, nominate, nonimage, tenoning.
	-5 letters: adenine, agnomen, amidone, amniote, anemone, anteing, antigen, atoning, damning, deaning, deeming, demeton, demoing, denning, dentine.
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.