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Dictionary » G » Genetic variation

Genetic variation

Definition

noun

1. Variations of genomes between members of species, or between groups of species thriving in different parts of the world as a result of genetic mutation.

2. Genetic diversity in a population or species as a result of new gene combinations (e.g. crossing over of chromosomes), genetic mutations, genetic drift, etc.

3. Important in maintaining biodiversity among species.


User Contributions / Comments:

  • Genetic variation is important in that it may provide alternative phenotypes which may respond to the environment in different ways.

(~Dlee7283)


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About Physiological Darwinism:From Fitness to Optimality

... fuzziness in evolutionism on the micro-process of organisms' variation, the Modern Synthesis on the basis of genetics introduced the genetic variation theory to give a micro-empirical support for the ...

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by wellalt
Thu Nov 12, 2009 11:15 pm
 
Forum: Evolution
Topic: About Physiological Darwinism:From Fitness to Optimality
Replies: 13
Views: 320

Re: Natural selection is proven wrong

... its effects on individuals in a population based on their individual variation. For example you and I are members of the same species which I ... admit, yet our individual differences is what makes me vastly genetically superior blessed with intelligence and good looks which led to ...

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by MolecularBioFTW
Sat Oct 03, 2009 8:35 am
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 217
Views: 42997

New species since humans?

... show speciation in action. In these cases, populations that undergo genetic variation (subspecies)form a circle or loop where adjacent variants interbred, but those at ...

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by robsabba
Mon Sep 14, 2009 6:06 pm
 
Forum: Evolution
Topic: New species since humans?
Replies: 34
Views: 1199

Re:

... look at how Darwin defined Natural Selection (paraphrasing) 1. There is variation among indiviuals in a popualtion. 2. That variation is inheritable ... not explain where the variation it acts on comes from. This is where genetics comes in. One source is assortive mating, and another is mutation. ...

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by robsabba
Fri Aug 28, 2009 5:29 pm
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 217
Views: 42997

meiosis in the production of gametes ...

... one explain me the role of meiosis in the production of gametes and genetic variation through recombination of alleles and genes including independent assortment and crossing ...

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by hephzi
Tue Aug 25, 2009 10:46 am
 
Forum: Cell Biology
Topic: meiosis in the production of gametes ...
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