[Cell-biology] Questions on mitosis

henry at microtechnonstop.com henry at microtechnonstop.com
Fri Sep 15 01:03:53 EST 2006


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?

Is this known to any degree at all? What websites would you recommend
for details?

Many thanks in advance,

Uno



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