On Thu, 9 Sep 1999 firstname.lastname@example.org wrote:
> However it would be hard to go from this in the opposite direction
> to figure out how to change things so as to produce something very
> different. The overall system is relatively specialized to producing a
> particular organism. You could tweak chemical gradients and maybe get
> a sixth finger or something, but you'd need a complete redesign to get
> an entirely new shape.
Actually, Hal, it depends on *how* different you want it. :-)
They have engineered Drosophila with legs growing out of the head
and I believe with extra sets of wings. It simply involves adding
putting a gene that makes and "X" and under the regulation of
the "Y" region control element, i.e.
If it looks like something you already grow, you could probably assemble them in a fairly ad hoc fasion.