[From Dick Robertson,2006.10.1610CST]
Maybe this is more dreck. But it strikes me as sort of analagous to the
way that Franz reported the search for the nipple in newborns ( I think
from some ethologist like Tinbergen). A gene sets up a RS for what the
growth tip should perceive as it grows. N ?
http://www.uchospitals.edu/news/2006/20060104-signaling.html
Best,
Dick R