Dictionary » N » Natural mutation

Natural mutation

natural mutation --> spontaneous mutation

A mutation which occurs by itself without first being affected by a mutagen, for example during the process of dNA replication. Spontaneous mutations arise at a remarkably constant rate. The rate that spontaneous mutations arise has been used as an evolutionary clock to estimate how closely related two (or more) separate species are to each other.


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

... genetic recombination produces more genetic variation compared to mutations 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: 1012

Re:

... body hair because of an evolutionary mechanism that will influence mutation and cause our offspring to not have hair follicles, because they ... happen when they are helpful. Point 2: Evolutionary mechanism is called natural selection. What it means - if none of the hairy individuals are unable ...

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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: 1380

How Does Natural Selection Create Ordered Variation?

... sums up the issue. I'll quote wildfunguy here: The intuition is that natural selection can only block a certain amount of mutation. But in actuality, natural selection can only let through a certain amount of mutation. ...

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by Doom
Wed Jan 15, 2014 6:18 am
 
Forum: Evolution
Topic: How Does Natural Selection Create Ordered Variation?
Replies: 7
Views: 5851

Re: Beneficial mutations vs harmful

Natural selection; survival to reproduce. Collections of genes (or more accurately a given ... fitness, tend to survive to reproduce more often than those without. Basically harmful mutations tend to lower fitness, whereas beneficial mutations tend to increase it. Or rather ...

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by NMLevesque
Fri Nov 22, 2013 6:51 pm
 
Forum: Evolution
Topic: Beneficial mutations vs harmful
Replies: 12
Views: 15666

Beneficial mutations vs harmful

To put it simply... The intuition is that natural selection can only block a certain amount of mutation. But in actuality, natural selection can only let through a certain amount of mutation. Creationists ...

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by wildfunguy
Sat Oct 19, 2013 9:38 pm
 
Forum: Evolution
Topic: Beneficial mutations vs harmful
Replies: 12
Views: 15666
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