>  If you think this is not reasonable remember when you only have one kind
of sex allele you get a male and when you have two different sex alleles
you get a female.

A single activated gene (such as the sex determination gene) can start off
a regulatory cascade (such as that initiated by the then-activated gene
feminize).  That cascade can again have forks activated by a different gene
or genes, or as in the case of female bees, epigenetic regulation, due to
environmental factors, such as how they are fed as larvae.

Randy Oliver
Grass Valley, CA
530 277 4450
ScientificBeekeeping.com


>

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