HYB: Cross-over
- To: Multiple recipients of list <i*@rt66.com>
- Subject: HYB: Cross-over
- From: S* M* <7*@compuserve.com>
- Date: Thu, 24 Jul 1997 17:53:57 -0600 (MDT)
Linda Mann asked:
=
: Does that happen frequently? =
Define "frequently". It happens often enough to be a useful tool in gene=
mapping. The further apart two genes are on a chromosome, the more often=
they are on parts that are swapped by a cross-over.
: Are there some kinds of crosses
: (mismatched chromosome pairs maybe?? one parent with damaged chromosom=
es
: and mostly sterile?) that increase the probability of this happening?
This is something that normally happens with matched chromosomes. I
remember some of the early reports of counts of C.G. White's arilbreds in=
which a crossover was suspected involving mis-matched chromosomes, but I
don't think this happens very often.
Sharon McAllister
73372.1745@compuserve.com
