🚀 go-pugleaf

In article <1759@tdat.teradata.COM> swf@tools3teradata.com (Stan Friesen) writes:
>In article <104941@netnews.upenn.edu>, rowe@pender.ee.upenn.edu (Mickey Rowe) writes:
>|> >The brain statement is based on the fact that neurons have less DNA per
>|> >unit weight than other kinds of cells (eggs-cluding eggs and who knows what
>|> >other special cases).  
>|> 
>|> I suspect that this is generally untrue.
>
>Ah, but it is in fact exactly literally true!  All cells in a single body have
>the *same* amount of DNA (with a few wierd exception like the polytene
>chromosomes in the salivary glands of Drosophila).
>
>Now, since neurons are amoung the largest cells in the body,

	Neurons are also among the _smallest_ cells in the in the body
-- granule cells of the cerebellum.  Granule cells have been estimated
to number ~10^11 which I think Mickey pointed out is about that
estimated in the rest of the brain.

>except for certain muscle fibers and (as mentioned above) eggs, they must
>clearly have less DNA per unit weight than other cells.

	So this ~50% of the neurons - the granule cells - clearly has
MORE DNA per unit weight than other cells.

-- 
Edwin Barkdoll
eb3@world.std.com