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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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Re: Which has a greater impact of evolution, mutations or genet

... in stating that, within a population of sexually reproducing organisms, genetic recombination produces more genetic variation compared to mutations and thus is a more important source on of variability on which ...

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by Cat
Fri Oct 31, 2014 2:26 am
 
Forum: Evolution
Topic: Which has a greater impact of evolution, mutations or genet
Replies: 1
Views: 1090

Which has a greater impact of evolution, mutations or genet

... biology textbook states that mutations are rare and that large genetic variations in a population of organisms that reproduce sexually is due to genetic recombination. ...

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by alpha78
Sun Oct 19, 2014 2:57 pm
 
Forum: Evolution
Topic: Which has a greater impact of evolution, mutations or genet
Replies: 1
Views: 1090

Re: Re:

... like to add to! The average IQ should be affected by environment and genetics, and the international variations in IQ should reveal how strongly environment affects these averages. The more variation ...

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by wildfunguy
Thu Mar 13, 2014 4:13 am
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 75
Views: 334105

Re: Brain size=IQ level theory (Blacks vs Whites & Asians)

... it's obvious your "doctorate" is neither in anthropology nor genetics. You simply don't know what you're talking about. In terms of evolutionary ... isolated from each other much longer than humans show no appreciable variations in intelligence regardless of habitat or range. Snow leopards ...

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by Seth90210
Sun Feb 16, 2014 9:35 pm
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 75
Views: 334105

Re: Am I the Next Step in Human Evolution?

... by environment. You need only compare your height to people of similar genetic background who grew up in a similar region to you. Otherwise the ... above the rest is somewhat arrogant in my opinion and ignoring human variation. One can have a variety of advantageous traits, but it doesn't ...

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by badgertoes
Sat Dec 28, 2013 8:31 am
 
Forum: Evolution
Topic: Am I the Next Step in Human Evolution?
Replies: 25
Views: 45317
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