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Dictionary » B » Back Mutation

Back Mutation

Relating to a form of genetic mutation where a genetic sequence is reversed.


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How Does Natural Selection Create Ordered Variation?

... will just as likely negate the effects of the previous beneficial mutation. As you know, mutations can be beneficial, harmful or neutral. This ... (mt. improbable). Becuase 'benificial' will just as likely mean going back down the hill as climbing up the hill. I hope I don't sound like I'm ...

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by Doom
Tue Jan 21, 2014 11:35 pm
 
Forum: Evolution
Topic: How Does Natural Selection Create Ordered Variation?
Replies: 7
Views: 1391

Re: Theories - Origin of Life

FYI - I am one biologist that disagrees… Most mutations are neutral. It depends on whether you're talking about mutations to ... the phenotype" by definition... If you have hours of time to waste going back through this ridiculously long thread, I started out saying most mutations ...

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by Luxorien
Sat Nov 16, 2013 7:32 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755251

Re: Re:

... the more they accumulate the more opportunity there is for compensatory mutations to bring the basic fitness level back to a kind of running equilibrium in fitness. After reading your post, I spotted an erroroneous ...

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by wildfunguy
Sat Oct 19, 2013 9:18 pm
 
Forum: Evolution
Topic: Beneficial mutations vs harmful
Replies: 12
Views: 3811

Re:

2) if there is about one mutation per new being in humans (may be much higher in other organisms) and you have ... opportunity there is for compensatory mutations to bring the basic fitness level back to a kind of running equilibrium in fitness. There's a lot more to be said on this; ...

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by ChrisHoStuart
Tue Oct 15, 2013 2:19 pm
 
Forum: Evolution
Topic: Beneficial mutations vs harmful
Replies: 12
Views: 3811

Re: Theories - Origin of Life

... it to be strong evidence. FYI - I am one biologist that disagrees… Most mutations are neutral. It depends on whether you're talking about mutations ... and the populations should always have the potential to merge back together. Again, this is just what is IMO what we should expect to see ...

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by wildfunguy
Sat Sep 28, 2013 5:21 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755251
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