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Re: Clones and administrivia
From: "Mickey P. Rowe" <email@example.com>
> In any case, in a description of "maternal effects", Buss
> points out that in the fruit fly (_Drosophila_), the nuclear DNA
> doesn't get appreciably transcribed until after the 13th cell
And something roughly comparable is true for vertebrate development.
I believe mRNA starts to be produced in the vert. embryo at about
the time of gastrulation (it is dertainly hours or days into
development, depending on the species).
> That means that all of the earliest events are driven by
> mRNA transcribed from the mother's DNA and deposited in the cytoplasm
> as the egg was formed. I don't know as that anybody knows how much of
> early mammalian development depends on such cytoplasmic endowments,
It is pretty well known - it is fairly easy to detect the production
of mRNA in a cell, so that assay has been widely done in all the std
The peace of God be with you.