Download The drug colchicine inhibits the formation of spindle fibers. If you

1
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The drug colchicine inhibits the formation of spindle fibers. If you treat dividing
cells with colchicine, what would you expect the result to be?
A
The sister chromatids would all segregate to the same
daughter cell.
B
The chromosomes would segregate randomly into each
daughter cell.
C
The chromosomes would line up along the metaphase plate
but not separate.
D
The cells would be unable to divide and eventually die.
2
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The mitotic spindles arise from which cell structure?
A
cleavage furrow
B
centromere
C
kinetochore
D
centrosome
3
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What do you predict would happen if only one microtubule attatched to a pair of
sister chromatids during mitosis?
A
The sister chromatids would become tangled and break
during separation.
B
The sister chromatids would fail to separate and be pulled
to the same pole.
C
Cellular division would be arrested.
D
The sister chromatids would separate normally.
4
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Attachment of the mitotic spindle fibers to the kinetochores is a characteristic of
which stage of mitosis?
A
metaphase
B
prometaphase
C
prophase
D
anaphase
5
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Which of the following events occurs during the prophase stage of mitosis?
A
Identical chromosomes align themselves along the equator
of the cell.
B
The cell grows in size.
C
The nuclear membrane disappears
D
The cell membrane pinches off and splits into two daughter
cells.