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Archiver > GENEALOGY-DNA > 2001-06 > 0991786146


From:
Subject: Re: [DNA] Darwin and DNA
Date: Tue, 5 Jun 2001 20:09:06 EDT


May I point out that the light moth - dark moth observations are an example
of a change in gene frequency in a population.

While this color change ~ may~ be natural selection it is ~not~ an example of
a new species.

Although dark moths were rare in earlier times there were light and dark
moths of this species before the change in enviroment. There were still light
and dark moths after the smog made the trees dark. Dark moths became more
common in polluted areas but NO new DNA or genes were created. This is an
example of adaptation by genetic drift.

This is not an example of the origin of a new species by random mutations.

In a message dated 6/4/01 6:55:20 PM Eastern Daylight Time,
writes:


> Date:6/4/01 6:55:20 PM Eastern Daylight Time
> From: (Ralph Turner)
> Reply-to:
> To:
>
>
> This is a sucinct way of explaining how Darwin's theory works. He didn't
> know how it worked but now we do.
>
> RT
>
> *********** REPLY SEPARATOR ***********
>
> On 6/4/01 at 6:09 PM wrote:
>
> >In a message dated 6/3/01 9:07:45 PM Mountain Daylight Time,
> > writes:
> >
> >
> >>
> >> > Do the changes take place first in the physical shapes of faces ( body
> ),
> >> > skin color and hair texture first or does it occurs first in the dna?
> >> >
> >> In one of the earlier evolution studies that I recall, moths in Great
> >> Britain were studied and during the smoggiest times the dark ones did
> not
> >> get eaten. As the smog cleared up over the decades, the dark ones were
> seen
> >> and eaten and the ones with the whiter genetic makeup survived. Thusly,
> the
> >> DNA comes before the chicken.!!!
> >>
> >> Sorry, the last part of my reply got deleted. ??? Marilyn
> >>
>
>



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