Re: increase in information represented by DNA

AC wrote:
On Thu, 13 Dec 2007 14:51:09 -0800 (PST),
Treus <treusdrie@xxxxxxxxx> wrote:


AC wrote:

<snip>

I'd dearly love to know what are the criterion for information.

How many times do I have to post the same defintion? Information is
the degree to which one variable of a system depends on or is
constrained by another.

Your definition does not seem useful. I've asked for another application of
information where you can demonstrate the utility of this definition. I'll
ask again here.

The utility I propose for information (according the definition I
supplied here, though it's not my own) is that you can't have fitness
without it. If you disagree, then produce a definition of "fitness"
such that it's not a function of "the degree to which one variable of
a system depends on or is constrained by another."

Do the remnants of a complex gene that once coded for a complex
protein have more information than the simplest gene? The former would
be irrelevant to biological processes of the life form but would
contain more information for the scientist who studies that genome.

Vestigial genes are nonadaptive, so there's little to no relevant
information.

And what happens when such a gene does get expressed again and actually
incurs some effect on fitness?

Reposting something else as well: A series of alterations that
conserves a gene's functionality does not add or subtract information.

We're not talking about an alteration, we're talking about a gene being
re-expressed.

Then the gene retains its information content.

Information is the degree to which one variable of a system depends on
or is constrained by another. Duplicating a variable does not increase
that association. A series of alterations that conserves a gene's
functionality does not add or subtract information.

How does this work for polyploidy speciation?

<snip>

That depends on what advantage to fitness the polyploidy brings.

Why should it matter whether it's advantageous or disadvantageous.

I have a copy of Henry V. Does it contain more information if I open it, or
leave it closed?

In terms of its "expression", the book has zero information when
closed. In terms of the process of "adaptation" required to produce
it, there is no difference.

.

Relevant Pages

  • Re: increase in information represented by DNA
    ... And what happens when such a gene does get expressed again and actually ... A series of alterations that conserves a gene's ... How does this work for polyploidy speciation? ...
    (talk.origins)
  • Re: increase in information represented by DNA
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    (talk.origins)
  • Re: The uncorrected simplifications/oversimplifications of
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    (sci.bio.evolution)
  • Re: Ernst Mayr: Where Are We (1976)
    ... >> to determine when organism fitness altruism could evolve in nature, ... >> gene fitness been developed allowing a minimally VALID simplified ... selection exist is required to produce a valid theory of same. ... Understanding how gene fitness epistasis can be coded and inherited ...
    (sci.bio.evolution)
  • The hole in the bucket.
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    (sci.bio.evolution)
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