Good Mutations.

David B. Fenske (
Thu, 27 Nov 1997 01:43:11 -0800

A question to those more genetically inclined:

I got into a discussion the other day about whether there ever are any
"good" mutations, the kind that evolution requires in order for changes to
occur. The only example I could think of had to do with sickle cell
anemia. Are there any examples of mutations that aren't harmful (aside
from the mutations to regions of DNA that don't do much)? Any help would
be appreciated.

Dave F.