When the cell duplicates chromosomes and separates into two separate nuclei, the cell is said to be in what phase?
A. G0 phase
B. interphase
C. M phase
D. S phase

Respuesta :

Cells duplicate the DNA in chromosomes in the S-phase before mitosis. 

Two separate nuclei are formed in telophase/cytokinesis.
The answer is S phase. 
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