Dictionary > Hardy-Weinberg equilibrium

Hardy-Weinberg equilibrium

Definition
noun
A principle stating that both allele and genotype frequencies in a randomly-mating population remain constant – and remain in this equilibrium across generations — unless a disturbing influence is introduced.
Supplement
For instance, a population containing the genotypes AA, aa and Aa, the frequency of AA will always be p2, aa will be q2, and Aa will be 2pq at equilibrium, where the p is the frequency of A and q is the frequency of a.
Deviation from Hardy-Weinberg principle indicates evolution of species. Examples of disturbing influences include non-random mating, mutations, selection, limited population size, random genetic drift and gene flow.
Word origin: named after G. H. Hardy and Wilhelm Weinberg.
Abbreviation: HWE

Variants:


User Contributions / Comments:

  • Basically, The Hardy-Weinberg equation is concerned with the genetics of populations and that random mating occurs.

(~Dlee7283)


You will also like...

Fossil trilobite imprint in the sediment
Insects

There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

Adaptation Tutorial
Adaptation Tutorial

Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..

Cell Respiration
Cell Respiration

Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

New Zealand - Biodiversity fauna
New Zealand’s Biodiversity

Find out more about New Zealand's unique biodiversity by exploring a range of different ecosystems and the key role of s..

Freshwater aquatic plankton
Freshwater Communities & Plankton

Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..

Energy pyramid
Freshwater Community Energy Relationships – Producers & Consumers

This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

Related Articles...

No related articles found

See all Related Topics