Mystery of Ascia

Gerry Quinn · 26 Jan 2011, 01:30 · from 2011-January.txt.gz

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From: gerryq at indigo.ie (Gerry Quinn)
Date: Wed, 26 Jan 2011 01:30:48 -0000
Subject: (urth) Mystery of Ascia
References: <SNT123-W599BB220B3C48EB4610A8FCFFC0 at phx.gbl>
Message-ID: <3C51C604C28C45FE9CDFDB5A06D15E8B@jill>


From: "Lee Berman" <severiansola at hotmail.com>
>
>>Entonio: No, they are saying that there may be different alleles which 
>>produce a
>>similar phenotype. They are  talking about expressed DNA. It's not a 
>>matter of
>>having a couple of  different bases which make no difference on the 
>>result. The coded
>>proteins may differ in structure yet not in function.
>
> I understand what you are saying but it is a different question being 
> addressed.
>
> The Wikipedia quote Gerry cited was:
>
> "a great deal of genetic variation is hidden in the form of alleles that 
> do not produce
> obvious phenotypic differences."
>
> We are talking about a principle of natural selection and evolution. 
> Natural selection
> can only act on phenotype. And if there is no "obvious difference" between 
> two phenotypes
> the difference is invisible to natural selection.

Nonsense.  Natural selection can operate on quite subtle differences, not 
just obvious ones.

- Gerry Quinn

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