"TWINBLUE"  wrote in message
news:bneq6e$17cc$1{at}darwin.ediacara.org...
> >is it the case that the divisions into gender is as close
as you>can get,
> evolutionary speaking, to something inevitable?>
>
> While there may be other solutions to the
> problem of genitic diversity and evolution
> I would expect that where ever you find life
> you will find sex. Since more than two varities of sex
would be a bit unhandy
> evolutionwise you would likely find most
> creatures in the universe that are large enough to see
with the naked eye are
> divided into "male" and "female".
>
> TWINBLUE

I agree that more than two varieties of sex are a bit
unwieldy, but a single sex, viz., parthenogenesis (see also,
heterogamy, and metagenesis.) is certainly as efficient. For
all we know, budding might be the mainstay of the galaxy,
with our two sexes being the exception rather than the rule.
The  key to single sex reproduction  however, is to somehow
avoid the danger that lack of genetic diversity pure cloning
represents.                ...tonyC
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