Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site rochester.UUCP Path: utzoo!linus!decvax!genrad!mit-eddie!think!harvard!seismo!rochester!sher From: sher@rochester.UUCP (David Sher) Newsgroups: net.bio Subject: Re: Human Genetics (a query) Message-ID: <10873@rochester.UUCP> Date: Sun, 4-Aug-85 13:49:04 EDT Article-I.D.: rocheste.10873 Posted: Sun Aug 4 13:49:04 1985 Date-Received: Wed, 7-Aug-85 02:12:38 EDT References: <241@weitek.UUCP> <1825@ecsvax.UUCP> Reply-To: sher@rochester.UUCP (David Sher) Organization: U. of Rochester, CS Dept. Lines: 11 Keywords: chromosome recombination genetics With regard to recombination of the Y chromosome, I remember something from highschool biology. If my memory serves, in the process of meosis (sp?) where sperm and egg are formed there is a stage where there are two sets of genetic material floating about. At this point there are two identical Y chromosomes. These two chromosomes may be able to recombine. Mistakes made in this recombination can result in variance among Y chromosomes. Of course this is still a weaker effect than recombining with a different chromosome. But I really know little about bio anyway. -David Sher sher@rochester seismo!rochester!sher