(urth) Mystery of Ascia

[Gerry Quinn]

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