OASIS Mailing List ArchivesView the OASIS mailing list archive below
or browse/search using MarkMail.


Help: OASIS Mailing Lists Help | MarkMail Help



   Re: [xml-dev] Evolving Information by XML Element Mutations

[ Lists Home | Date Index | Thread Index ]

Roger L. Costello wrote:

> Is it true that in Nature the genes already provide the "code" that
> would be used in a mutation?  That is, if we think of a gene as
> "code", then when a mutation occurs that untapped code gets
> activated.  Is that the way mutations work in Nature?

Don't get too fixated on mutations.  Recall that most adaptation
occurs by recombination, not mutation.  In this regard, I was just
reading about a researcher who spent some 40 years breeding foxes with
the goal of trying to breed tame foxes from wild progentors. He
succeeded pretty well.  No mutations were (apparently) involved , but
the foxes' appearance and behavior changed quite a bit.

As I understand it, genetic algorithm programs with only mutations don't
usually do that well - you need to include recombination to be able
explore the solution space thoroughly.

In real life, it appears that most genetic changes produce adjustments 
in the activity of certain genes or combinations of genes, or in the 
timing of their expression.


Tom P


News | XML in Industry | Calendar | XML Registry
Marketplace | Resources | MyXML.org | Sponsors | Privacy Statement

Copyright 2001 XML.org. This site is hosted by OASIS