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Hardy-Weinberg principle

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: HWP
Variants:


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Can photosynthesis help reduce global warming?

... earth is quite... different in all places, the plant would have to be hardy, and also be superior to all other plants. Hence, Gause's principle. We could genetically modify a species, of let's say, Dandelion. There will be a ...

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by fastsandslash
Sat Jun 05, 2010 10:34 pm
 
Forum: Ecology
Topic: Can photosynthesis help reduce global warming?
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