Re: 'Directed' evolution?

Steve Clark (ssclark@facstaff.wisc.edu)
Wed, 23 Sep 1998 09:52:48 -0500

At 11:40 AM 9/22/98 -0500, Ron Chitwood wrote:
>"...Among all the mutations that have been studied, there aren't any known,
>clear, examples of a mutation that has added information."

This is just wrong. One example is the immune system. Developing
lymphocytes under go mutation of their antigen receptor genes which imparts
the ability to recognize new antigens.