Some cancer drugs work during the cell cycle phase where nuclear and cytoplasmic divisions oc-cur. What is this cell cycle phase called?
a. G1
b. S
c. M
d. G2
ANS: C
The M phase includes both nuclear and cytoplasmic divisions. The G1 phase includes the period between the M phase and the start of DNA synthesis. The S phase includes synthesis of DNA in the cell nucleus. The G2 phase includes RNA and protein synthesis.
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