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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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mutation-selection balance

... death before the person can reproduce. This is termed a genetic lethal mutation because, even though the individual might survive for some time, ... a new copy of the lethal dominant disease allele into a population, natural selection eliminates it. In this case, p, the gene frequency of the ...

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by Monco
Mon Mar 04, 2013 10:41 pm
 
Forum: Genetics
Topic: mutation-selection balance
Replies: 0
Views: 59

Re: mutations and dependencies

... on the fossil record? Now I will quote one of the linked articles. bad mutations are physically linked to good mutations,2 so that they cannot be ... without passing on all of its harmful mutations. On top of that, natural selection is also occurring within our bodies. Within the seminiferous ...

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by wildfunguy
Sat Feb 23, 2013 3:50 pm
 
Forum: Evolution
Topic: mutations and dependencies
Replies: 17
Views: 844

Re:

... a common ancestor with a primordial prokartyote 3.5 bya through random mutation+natural selection) is (conveniently) a process that is alleged to have both started an stopped ...

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by JackBean
Sat Nov 24, 2012 8:34 pm
 
Forum: Evolution
Topic: Creationism is not scientific
Replies: 24
Views: 3064

Creationism is not scientific

... a common ancestor with a primordial prokartyote 3.5 bya through random mutation+natural selection) is (conveniently) a process that is alleged to have both started an stopped ...

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by jinx25
Sat Nov 24, 2012 7:18 pm
 
Forum: Evolution
Topic: Creationism is not scientific
Replies: 24
Views: 3064

Evolutionary mechanisms

... information. Mutations you say? Hospitals are full of people with mutation (cancer, disease, sickness, death etc etc) Natural selection can only act on whats available and REDUCES genetic variation. Neodarwinian ...

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by jinx25
Sat Nov 10, 2012 11:49 am
 
Forum: Evolution
Topic: Evolutionary mechanisms
Replies: 3
Views: 807
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