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Week 7: Mitosis Answers

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Which statement accurately describes the relationship between cytokinesis and mitosis?

A
Mitosis includes interphase and cytokinesis.
B
Cytokinesis precedes mitosis in the cell cycle.
C
Cytokinesis is not a phase of mitosis, but occurs during mitosis.
D
Interphase includes cytokinesis and mitosis.
2
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Early in mitosis, the nucleus, nucleolus, and nuclear envelope begin to dissolve in preparation for cell division. In which stage of the cell cycle is this process reversed?

A
cytokinesis
B
interphase
C
anaphase
D
telophase
3

Which of the steps in this sequence of events is an example of mitosis at work?

A
A baseball hits the arm of a baseball player.
B
The player reacts quickly grabbing his arm.
C
A bruise forms where the ball hit the arm.
D
The bruise slowly disappears as the arm heals.
4

After chromosomes are formed, during which phase of mitosis do the chromosomes attach to the spindle fibers by their centromeres?

A
anaphase
B
prophase
C
metaphase
D
telophase
5

Which statement best describes cancer cells?

A
They grow as a single layer of cells.
B
They cease to reproduce after 20–50 mitotic divisions.
C
They reproduce only when needed to replace missing cells.
D
They are not regulated by contact inhibition.
6

An example of mitosis at work is a leaf

A
turning yellow.
B
growing.
C
taking in carbon dioxide.
D
performing photosynthesis.
7

Which are replicated during interphase?

A
sister chromatids
B
chromosomes
C
centromeres
D
nuclei
8

Mitosis is divided into phases.Which phase of mitosis is shown in the diagram?

Question illustration
A
prophase
B
metaphase
C
anaphase
D
telophase
9

What would happen to skin cells if mitosis did not take place?

A
Skin cells would regrow from other types of cells.
B
Skin cells would be replaced at a slower rate.
C
Skin cells would be replaced with new cells.
D
Skin cells would die and not be replaced.
10

An example of mitosis at work is a plant root

A
elongating.
B
absorbing.
C
pointing down.
D
breaking.

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Week 7: Mitosis Answers — Biology_A_IC