Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!ut-emx!bill From: bill@ut-emx.uucp (Bill Jefferys) Newsgroups: sci.bio Subject: Re: Reconstructing cells from DNA Message-ID: <48330@ut-emx.uucp> Date: 3 May 91 13:06:45 GMT References: <79788@bu.edu.bu.edu> <47570@ut-emx.uucp> <21630@crg5.UUCP> Organization: The University of Texas at Austin; Austin, Texas Lines: 34 In article <21630@crg5.UUCP> szabo@crg5.UUCP (Nick Szabo) writes: #In article <47570@ut-emx.uucp> bill@ut-emx.uucp (Bill Jefferys) writes: # #>...a bacterium has co-evolved #>with the wasp. It is transmitted via the eggs... and #>has evolved the ability to supress the production #>of male offspring. Presumably this # #Since when did bacterium lose their genes? Parasatism is #every bit as much genetic evolution as more "normal" methods #of making a living. And it is well known that predator and parasite Sure, I know that bacteria contain genes. And (as I pointed out to Chris C. in E-mail and as others have pointed out here) the acquisition of organelles by eukaryotic cells is an example of "infection" of an organism by outside genetic material that changes the genetic complement of the organism. What is perhaps unique, and certainly different, about this example is the fact that the condition is reversible when the wasp is exposed to antibiotics. If you will reread my original posting, you will note that I did not posit this as a case of non-genetic evolution. I did point out that the example shows that the idea is not as far-fetched as others were making it out to be. In biology, it is frequently difficult to draw clear lines of demarcation. Bill Jefferys -- If you meet the Buddha on the net, put him in your kill file --Robert Firth