Dear unnamed participant,
I have to say that this discussion seems enormously misplaced, but look at
plants: allopolyploidy in the Brassica family is an excellent example.
John
>In article <m0vVd68-0004ZcC at uctmail2.uct.ac.za>, ed at MOLBIOL.UCT.AC.ZA says...
>>>>> To: mol-evol at net.bio.net>>> From: un691cs at genius.embnet.dkfz-heidelberg.de (slavemaster)
>>> Subject: Re: Anyone Seen Evolution?
>>>>> Problem is the definition of what a species is ! as I recall correctly from
>>> biology 107: aspecies is defined as an organism that can produce fertile
>>> offspring if mated with an organism of the same species.
>>> With E.coli (a-sexual multiplication) or a virus, the definition of a
>>>species is almost
>>> impossible,
>>>>...but has been done: taxonomy committees for both groups of
>>organisms have defined species for both, so the mating concept falls
>>away.
>>Hm interesting. I'm not familiar with this: how
>is a species defined nowadays ?
>(aslo: I remember a dixussion once on the telly
>between creationists and normal people and in the end
>the creationist had to admit that new species are being
>formed. But they THEN went ahead and stated that this is still
>no proof for evolution, because its unimaginable that
>a complete new genus or even taxa are being formed !
>>But anyway: do you have examples of higher organsims
>where evolution is more or less obvious ?
>>clemens
John R. Jungck
Biology
Beloit College
700 College Street
Beloit, WI 53511
Web site for the BioQUEST Curriculum Consortium:
http://www.beloit.edu/~bquest
