Dictionary » G » Genetic isolation

Genetic isolation

Definition

noun

The lack of interbreeding or little genetic mixing between organisms of the same species.


Supplement

Genetic isolation may be the result of geographic isolation or of other isolation mechanisms that prevented successful reproduction. This may lead to speciation (formation of new species) and endangering species to extinction due to a small gene pool.

Examples of genetic isolation are the ecological community that are secluded away from others (such as Tristan da Cunha or Pitcairn Islands), crossing of plants which produce sterile offspring, and human influence on genetic isolates through restricted breeding of dogs.

(Genetic isolation differs from gene isolation, which is the isolation of a particular gene from the rest for use in genetic engineering).


Related forms: genetic isolate (noun).

See also: speciation, gene pool.


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Theories - Origin of Life

... 4 different stages, with the final one being the complete reproductive isolation, and this reproductive isolation is always associated with chromosomal rearrangements and environment independent genetic incompatibilities. Yes, in sticklebacks , and they make this suggestion ...

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by AstraSequi
Tue Mar 27, 2012 2:41 am
 
Forum: Evolution
Topic: Theories - Origin of Life
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Views: 600269

Re: Theories - Origin of Life

... that said, the referenced paper does clearly state:- Studies on the genetics, mate choice, ecology and morphology of these fish indicate that ... again is quite clear. Speciation involves the evolution of reproductive isolation among groups of individuals; isolation that is often coupled with ...

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by scottie
Tue Mar 13, 2012 3:12 pm
 
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book recommendation

... vitamins, hormones.classification, identification, extraction and isolation of active principles of commonly used medicinal plants. Immunological preparations, genetic engineering, fermentation. Biopharmaceutics, Pharmacokinetics-drug absorption, ...

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Re: Camouflage in nature

... the possibility of the perfect outcome through slow and lengthy genetic alterations of multiple camouflage characteristics in a constantly ... the time were unable to adapt, and they died out. No species evolves in isolation. All are parts of ecosystems and environments that can change. ...

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by Gavin
Fri Nov 11, 2011 9:36 pm
 
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It's not just genetic drift as caused by sampling. It's total removal of an allele from the population ... a rule for definition of "Population". Are you doing that ? Reproductive isolation ? http://www.biology-online.org/dictionary/Population are you busy making stuff ...

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Wed Nov 09, 2011 2:48 am
 
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