How many copies of each different DNA molecule will be found in a cell at the beginning of each of these stages of the mitotic cell cycle?
G 2 of Interphase Prophase Cytokinesis
A 1 1 2
B 1 2 1
C 2 1 2
D 2 2 2

Question

How many copies of each different DNA molecule will be found in a cell at the beginning of each of these stages of the mitotic cell cycle?

	G 2 of Interphase	Prophase	Cytokinesis
A	1	1	2
B	1	2	1
C	2	1	2
D	2	2	2

TestHub · Accepted Answer

All the three stages mentioned occur after S-phase; thus, DNA is duplicated (DNA is twice in amount). Even though two nuclei have formed in the dividing cell, until the cytoplasm is completely divided, the single mother cell will have 2 copies of DNA. Once the cytokinesis has completed, each daughter cell will have a single copy of DNA. Hence, the answer is D.

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