[Cell-biology] Re: Questions on mitosis
say.no at spam.now
Mon Sep 18 04:24:19 EST 2006
henry at microtechnonstop.com wrote:
> When it is time for a cell to divide (how does it know when?), part of
> the work involved is to duplicate its DNA (effectively, copying its
> nucleus first?). My question is regarding the sudden (?) hefty need for
> building blocks (deoxyribose, phosphate, purines and pyrimidines),
> where do they come from? How does the cell summon their timely
> presence? What is the "duplication rate," is it known how much time the
> cell needs to complete a second nucleus?
The daughter nuclei actually reform after the cell undergoes cytokinesis
though DNA is replicated and divided beforehand.
> Is this known to any degree at all? What websites would you recommend
> for details?
How about Molecular Biology of the Cell, Alberts et al. A searchable copy
can be found at...
See Chapter 17 and 18.
17. The Cell Cycle and Programmed Cell Death
18. The Mechanics of Cell Division
More information about the Cellbiol