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Topic: Several questions on evolution, and mutation (rate)
Replies: 52   Last Post: Sep 8, 1996 9:44 PM

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James Foster

Posts: 11
Registered: 12/8/04
Re: Several questions on evolution, and mutation (rate)
Posted: Sep 4, 1996 1:18 PM
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L.A. Moran (lamoran@gpu.utcc.utoronto.ca) wrote:
: In article <50hl94$r80@newshound.csrv.uidaho.edu>,
: James Foster <foster@cs.uidaho.edu> wrote:

: More or less. I was trying to find out whether you attributed all of evolution
: to natural selection. Apparently you do. I don't.

Yea, you're right. I overstated the case. Evolution can have many causes,
and drift is certainly one.

: I believe that the current tree of life is largely the product of contingent
: events (including genetic drift). This is not to deny that adaptation occurs
: since there are many clear examples. I simply want to point out that many
: of the historical events of the past may not be due to selection. I also
: believe that most of evolution at the molecular level can be attributed to
: the fixation of neutral alleles by drift. This has nothing to do with
: natural selection and it accounts for much of the deversity that we see
: in modern populations.

Drift is a source of change. Selection is NOT a source of change. So
this is comparing apples to oranges, no? Selective pressure preserves
preferentially some changes over others, whether those changes were
caused by duplication, drift, re-combination, or whatever. Evolution is
the coupled result of change AND selective pressure.
--
James A. Foster email: foster@cs.uidaho.edu
Laboratory for Applied Logic Dept. of Computer Science
University of Idaho www: http://www.cs.uidaho.edu/~foster

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Date Subject Author
8/15/96
Read Several questions on evolution, and mutation (rate)
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8/16/96
Read Re: Several questions on evolution, and mutation (rate)
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8/16/96
Read Re: Several questions on evolution, and mutation (rate)
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8/17/96
Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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8/18/96
Read Re: Several questions on evolution, and mutation (rate)
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8/20/96
Read Re: Several questions on evolution, and mutation (rate)
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8/21/96
Read Re: Several questions on evolution, and mutation (rate)
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8/23/96
Read Re: Several questions on evolution, and mutation (rate)
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8/25/96
Read Re: Several questions on evolution, and mutation (rate)
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8/26/96
Read Re: Several questions on evolution, and mutation (rate)
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8/27/96
Read Re: Several questions on evolution, and mutation (rate)
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8/27/96
Read Re: Several questions on evolution, and mutation (rate)
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8/29/96
Read Re: Several questions on evolution, and mutation (rate)
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8/30/96
Read Re: Several questions on evolution, and mutation (rate)
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8/31/96
Read Re: Several questions on evolution, and mutation (rate)
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9/3/96
Read Re: Several questions on evolution, and mutation (rate)
James Foster
9/4/96
Read Re: Several questions on evolution, and mutation (rate)
L.A. Moran
9/4/96
Read Re: Several questions on evolution, and mutation (rate)
James Foster
9/4/96
Read Re: Several questions on evolution, and mutation (rate)
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9/4/96
Read Re: Several questions on evolution, and mutation (rate)
James Foster
9/4/96
Read Re: Several questions on evolution, and mutation (rate)
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9/5/96
Read Re: Several questions on evolution, and mutation (rate)
James Foster
9/5/96
Read Re: Several questions on evolution, and mutation (rate)
Ram Samudrala
9/6/96
Read Re: Several questions on evolution, and mutation (rate)
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8/27/96
Read Re: Several questions on evolution, and mutation (rate)
Joan Shields
8/28/96
Read Re: Several questions on evolution, and mutation (rate)
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8/29/96
Read Re: Several questions on evolution, and mutation (rate)
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8/30/96
Read Re: Several questions on evolution, and mutation (rate)
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8/31/96
Read Re: Several questions on evolution, and mutation (rate)
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8/30/96
Read Re: Several questions on evolution, and mutation (rate)
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8/30/96
Read Re: Several questions on evolution, and mutation (rate)
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9/7/96
Read Re: Several questions on evolution, and mutation (rate)
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8/27/96
Read Re: Several questions on evolution, and mutation (rate)
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8/28/96
Read Re: Several questions on evolution, and mutation (rate)
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8/30/96
Read Re: Several questions on evolution, and mutation (rate)
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9/6/96
Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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8/22/96
Read Re: Several questions on evolution, and mutation (rate)
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8/31/96
Read Re: Several questions on evolution, and mutation (rate)
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9/4/96
Read Re: Several questions on evolution, and mutation (rate)
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Read Re: Several questions on evolution, and mutation (rate)
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9/8/96
Read Re: Several questions on evolution, and mutation (rate)
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