Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!husc6!think!ames!ucbcad!ucbvax!cbosgd!osu-eddie!bgsuvax!gagen From: gagen@bgsuvax.UUCP (kathleen gagen) Newsgroups: sci.bio Subject: Re: Bushmen Message-ID: <1224@bgsuvax.UUCP> Date: Wed, 15-Jul-87 12:07:56 EDT Article-I.D.: bgsuvax.1224 Posted: Wed Jul 15 12:07:56 1987 Date-Received: Sat, 18-Jul-87 04:37:08 EDT References: <4505@ihlpa.ATT.COM> Organization: Bowling Green State University B.G., Oh. Lines: 25 Summary: mitochondrial DNA In article <4505@ihlpa.ATT.COM>, krista@ihlpa.ATT.COM (K.J.Anderson) writes: > There still are puzzles, however, including a group of people (Bushmen) > whose mitochondrial DNA differs from the rest. Because mitochondria > seem to be neutral, they provide a measure of historical mating > patterns. Most people's mitochondrial DNA shows that they have > shared the same gene pool for 40,000 years. The other group's > mitochondrial DNA puts them in an older gene pool - 100,000 years. [5] > I'm not sure that it would be accurate to say that mitochondria porvide a measure of historical "mating" patterns. So far as is known, mitochondrial DNA is extreemly highly conserved. This may be, at least in part, because mitochondrial DNA is involved in the essential function of cellular respiration. So far as is known, all of the mitochondrial DnA of any individual is identical. Unlike nuclear DNA, mitochondrial DNA is of MATERNAL origin. In other words, all of your mitochondrial DNA is inherited from your mother, who inherited it from her mother etc. Kathi Gagen -- Kathleen Pausic Gagen ...!cbosgd!osu-eddie!bgsuvax!gagen Dept. of Biological Sciences gagen@research!.bgsu.edu Bowling Green State University gagen%bgsu.csnet@csnet-relay.arpa Bowling Green Ohio 43403 gagen%andy.bgsu.edu@csnet-relay.csnet