From: Scott Chase (email@example.com)
Date: Sat 16 Apr 2005 - 21:21:58 GMT
--- Bill Spight <firstname.lastname@example.org> wrote:
> Dear Scott,
> > Which eminent evolutionary author is correct on
> > Darwin's relation to Galton, Aunger or Pinker?
> Charles Darwin and Francis Galton had the same
> grandfather (Erasmus
> Darwin), but different grandmothers. Maybe they were
> half-cousins. ;-)
So the prominent MIT linguist would have been more correct?
BTW, there's a section Aunger has on ribosomes being
involved in DNA replication that has me thoroughly
baffled. Did I fall asleep in cell biology class one
day and miss this part? Aunger (p.86) says: "At this
point, the message of DNA on one side can be read off
by ribosomes to produce its complement, which is then
tacked on to form a new stretch of DNA."
If ribomoses *contain" subunits with rRNA is that the
same as ribosomes being "a peculiar type of RNA"
[Aunger p. 86].?
Alberts et al in _Molecular Biology of the Cell_ (4th
ed.) define a ribosome as follows: "[p]article
composed of ribosomal RNAs and ribosomal proteins that
associates with messenger RNA and catalyzes the
synthesis of protein."
Aunger does go on to talk about ribosomal operations
of protein synthesis, but its the DNA replication
operation that confuses the hell out of me. Do
ribosomes play any direct role in this?
Hopefully Derek and Chris can offer their expertise on
this matter of cell biology.
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