Dominance

Definition

noun

(general) The state of being dominant; supremacy

(genetics) The property of a gene (or allele) when it suppresses the expression, or dominates the effects, of the recessive gene (or allele).

(ecology) (A group of) organisms that have acquired a high status in a social group, such as an animal or a group of animals on top of a social hierarchy usually as a result of aggression.

(neurology) The normal tendency for one side of the body or of one of a pair of organs to dominate or be used in consistent preference than the other


Supplement

In general, the term dominance pertains to the state of being dominant or supreme. For example in plants, apical dominance refers to the condition in which vertical growth supersedes lateral growth. In biological contexts, it may mean differently in genetics, ecology, and neurobiology.

In genetics, dominance pertains to the property of a gene (or allele) in relation to other genes or alleles. A gene or allele shows dominance when it suppresses the expression, or dominates the effects, of the recessive gene (or allele).

In ecology, dominance pertains to the high status of an organism or a group of organism in a social group. In particular, an animal or a group of animals takes the top of a social hierarchy usually as a result of aggression. Thus, it would have a greater access to limited resources, such as food, mate, and space.

In neurology, dominance refers to the normal tendency for one side of the body or of one of a pair of organs to dominate or be used in consistent preference than the other. For instance, the consistent use of one side of the body, as in being left-handed or right-handed, and left-brained or right-brained (depending on which side of his brain is dominant or frequently used) is demonstrated as lateral dominance.


Word origin: Latin dominari (to govern)

Synonym(s):

Related term(s):

Related form(s):

Retrieved from "http://www.biology-online.org/bodict/index.php?title=Dominance&oldid=101809"
First | Previous (Domify) | Next (Dominance-subordination) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.