cell division

Taka

The book in hand translates the 'cell division' as that of cell stage

I don't see the connection.  I don't quite grasp what is meant by 'cell stage'.

Taka

Rather than that, isn't it 'cells divided by experimenters'?

No.  Cell division means the process by which one cell divides to form two cells.  Multiple cell divisions beginning with a fertilized egg cell are the basis of the growth of organisms.  The transfer process explained in the second sentence is an independent process.  It is this second process that is done by the experimenters.  (Mother Nature does the first process:  cell division.)  The way these two are juxtaposed creates some confusion.  The text could have been clearer.

CJ 

 

Taka

I know. And that is a natural biological process, isn't it? Is that really a technology used in cloning? Why 'cloning by cell division'?

It's not the technology but the dependence on the natural process that is the central issue for the author here.  by cell division thus means by [making use / taking advantage] of the natural process of cell division.

CJ