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Biotechnology Objective Questions { Cell Cycle }



22. The phase of mitosis which is associated with the formation of the nuclear envelope, is
A.prophase
B.metaphase
C.anaphase
D.telophase
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23. At the __________ checkpoint, cell growth is controlled.
A.C
B.G1
C.G2
D.S
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24. A nuclear envelope forms around each set of sister chromatids in
A.anaphase
B.metaphase
C.prophase
D.telophase
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25. In which of the following phase preparations for genome separation are made?
A.C
B.G1
C.G2
D.M
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26. Cells which no longer divide (such as certain specialized cells found in the human brain) remain in which phase of the cell cycle?
A.Prophase
B.S phase
C.G0 Phase
D.Gl Phase
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27. The cell cycle is controlled in most cells by
A.time (after a certain length of time the cell divides)
B.a series of checkpoints
C.cell size (when the cell reaches a certain size, it divides)
D.different cells exhibit different control strategies
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28.  How many chromatids does a diploid body cell contain just prior to cell division?
A.23
B.46
C.69
D.92
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