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From: friesen@psivax.UUCP (Stanley Friesen)
Newsgroups: net.bio
Subject: Re: Embryology
Message-ID: <735@psivax.UUCP>
Date: Tue, 17-Sep-85 11:15:32 EDT
Article-I.D.: psivax.735
Posted: Tue Sep 17 11:15:32 1985
Date-Received: Mon, 23-Sep-85 00:23:18 EDT
References: <287@bcsaic.UUCP>
Reply-To: friesen@psivax.UUCP (Stanley Friesen)
Organization: Pacesetter Systems Inc., Sylmar, CA
Lines: 15
Summary: 

In article <287@bcsaic.UUCP> michaelm@bcsaic.UUCP (michael b maxwell) writes:
>In the gastrula, do the ectoderm, mesoderm and endoderm actually look
>and/or stain differently?  Or are they just presumptively different?

	In what organism? The answer varies quite a bit depending on
which animal you are talking about. In Humans I believe they look
quite different. Endoderm is composed of a layer of smallish angular
cells, ectoderm is a layer of larger, less angular cells, and mesoderm
is originally an irregular network of more or less amoeboid cells.
-- 

				Sarima (Stanley Friesen)

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