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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