Re: Junk DNA: A hypothesis

From: Perplexed in Peoria (jimmenegay_at_sbcglobal.net)
Date: 01/26/05 

Date: Wed, 26 Jan 2005 11:41:07 -0500 (EST)

"Tim Tyler" <tim@tt1lock.org> wrote in message news:ct61nl$1v2d$1@darwin.ediacara.org...
> Here are two similar sentences, which are sensitive to recombination.
>
> "The lady picked up the purple book."
> "The lady picked up the maroon book."
>
> These sentences have /very/ similar meanings.
>
> However after sentence-crossover we might get, for example:
>
> "The lady picked up the marple book."
>
> The meaning has changed - suddenly there are connotations of Agatha Christie!

That is a VERY cute example! Is it original?

However, your example has a problem, if you wish to offer it as
a model of something that frequently happens in evolution. How
did natural selection create the initial situation, in which
two alleles (purple and maroon) with no apparent common ancestor,
but with similar meanings, came to exist at the same locus?

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