On Fri, 16 May 2003 09:11:15 +0100, geoff
wrote:

Researcher,

Is there any scientific proof that one particular gene is responsible for
only one trait in the subject plant?

Is there any scientific proof that two (or more) genes do not act in
concert
thereby being responsible for three (or more) traits?

Of course it cannot be proven, you can't *prove* the absence of something
(although you can often be pretty sure sometimes).

A gene would code for a single protein, however, this protein may have
differing effects in different tissues at different times, and in different
organisms. Tim.