Cell Cycle – Section 1

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

Show Answer

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

Show Answer

28. How many chromatids does a diploid body cell contain just prior to cell division?

A. 23
B. 46
C. 69
D. 92

Show Answer

29. DNA replication is controlled at which of the following checkpoint?

A. G₁
B. G₂
C. M
D. S

Show Answer

30. Which of the following begins when pairs of sister chromatids align in the center of the cell?

A. Anaphase
B. Interphase
C. Metaphase
D. Prophase

Show Answer