newbie question about DNA and cells
xyzbbruner at uclink4.berkeley.edu
Wed Dec 31 21:02:13 EST 2003
On 31 Dec 2003 07:13:02 -0800, eric at pegasi.net (Eric Hanson) wrote:
>I'm a computer scientist interested in genetics and cellular biology.
>I have a decent understanding of the process of DNA getting converted
>to RNA, from there to enzymes, but have a question.
>Each cell has the same DNA as its base, and yet one cell might become
>a piece of tooth enamel and one might become a piece of toenail. If
>they each have the same DNA, how does the cell know what to become?
The posted reply from jai is about as good as you are going to get for
a brief post.
If you want to follow this up, a good book to start with is D P Clark
& L D Russell, Molecular Biology made fun and simple. 2/e, 2000.
(check if there is a new one?). It is a quite inexpensive paperback,
which provides a good and very readable intro to a wide range of basic
mol biol. They have a lot of fun, but the science is sound, and the
book is used as an intro level textbook. It is a from a small
publisher, and not available from some standard sources -- tho of
course you can check. Suggest you check the publishers web site,
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