Dictionary » N » Natural selection

Natural selection

Definition

noun

A process in nature in which organisms possessing certain genotypic characteristics that make them better adjusted to an environment tend to survive, reproduce, increase in number or frequency, and therefore, are able to transmit and perpetuate their essential genotypic qualities to succeeding generations.


Supplement

It is the process by which heritable traits that increase an organism’s chances of survival and reproduction are favoured than less beneficial traits. Originally proposed by Charles Darwin, natural selection is the process that results in the evolution of organism.



See also:
theory of evolution, survival of the fittest.


Additional Reference

A more detailed discussion about the theory and of natural selection and examples of it in practice can be found in the genetics and evolution tutorial.


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Re: Can human body hair disappear as a result of... clothing?

In this case, in addition to natural selection, sexual selection must also be operating: different sexes may show particular mating preference ...

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by Hrushikesh
Sun Dec 14, 2014 7:13 pm
 
Forum: Evolution
Topic: Can human body hair disappear as a result of... clothing?
Replies: 4
Views: 1470

Could Hardy-Weinberg terminology be more precise?

... something more partitioned, perhaps to aid the deduction of causes? Natural selection and genetic drift primarily concern whether individuals reproduce, and subsidiarily ...

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by wildfunguy
Wed Nov 19, 2014 4:56 pm
 
Forum: General Discussion
Topic: Could Hardy-Weinberg terminology be more precise?
Replies: 0
Views: 607

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

... and thus is a more important source on of variability on which natural selection operates, whereas in populations of organisms that reproduce asexually mutations ...

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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

Re:

... happen when they are helpful. Point 2: Evolutionary mechanism is called natural selection. What it means - if none of the hairy individuals are unable to find mates at some ...

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by Cat
Fri Oct 31, 2014 2:02 am
 
Forum: Evolution
Topic: Can human body hair disappear as a result of... clothing?
Replies: 4
Views: 1470

Which has a greater impact of evolution, mutations or genet

... or recombination, produce the largest genetic variations which natural selection operates on. However, an Anthropology (a science that studies humans within the contexts ...

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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
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