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From: werner@aecom.UUCP
Newsgroups: sci.bio
Subject: Re: C. elegans
Message-ID: <1068@aecom.YU.EDU>
Date: Thu, 14-May-87 22:56:03 EDT
Article-I.D.: aecom.1068
Posted: Thu May 14 22:56:03 1987
Date-Received: Sat, 16-May-87 17:25:49 EDT
References: <1055@thebes.UUCP> <9576@duke.cs.duke.edu> <1640@zeus.TEK.COM> <1090@sigi.Colorado.EDU>
Organization: Albert Einstein Coll. of Med., NY
Lines: 24

In article <1090@sigi.Colorado.EDU>, pell@boulder.Colorado.EDU (Anthony Pelletier) writes:
> In article <1055@aecom.YU.EDU> werner@aecom.YU.EDU (Craig Werner) writes:
> >
> >	Most nematodes, on the other hand, have two definite sexes, where
> >XX is female and X is male.
> >
> non-disjunction of the X during meiosis.  You are incorrect in your statement
> that this differs from other nematodes, which are also male/hermaphrodite
> species in which the male is X_.
	
	No, I was not incorrect in that statement.  Most parasitic nematodes,
if not all, have a male (which makes only sperm) and a female (which 
produces only ova), and this also holds for most free living nematodes as
well (or so I have been repeatedly told by a variety of C. elegans workers).
I only know that there are two sexes in all the filarial nematode species:
Brugia malayi, B. pahangi, Wuchereria bancrofti, Onchocerca volvulus,
Dirofilariae immitis, etc, etc...

	Now the big question.  Does it really matter? 
-- 
			      Craig Werner (MD/PhD '91)
				!philabs!aecom!werner
              (1935-14E Eastchester Rd., Bronx NY 10461, 212-931-2517)
"The DNA genetic system is the one library in which it is worthwhile to browse"