Imagine a prometaphase chromosome pair that is attached to one spindle pole. Which of the following would happen if both arms of
the chromosome are severed with a strong laser beam?
A) All chromosome fragments (the centromere-containing fragment and the arm fragments) would be pushed away from the pole
B) Only the two arm fragments would be pulled toward the pole. The kinetochore-containing fragment would remain stationary
C) The kinetochore-containing fragment would be pulled toward the pole. The two arm fragments would move away from the pole
D) The kinetochore-containing fragment would move away from the pole, but the two arm fragments would be pulled toward the pole
E) All chromosome fragments would be pulled toward the pole
A) All chromosome fragments (the centromere-containing fragment and the arm fragments) would be pushed away from the pole
B) Only the two arm fragments would be pulled toward the pole. The kinetochore-containing fragment would remain stationary
C) The kinetochore-containing fragment would be pulled toward the pole. The two arm fragments would move away from the pole
D) The kinetochore-containing fragment would move away from the pole, but the two arm fragments would be pulled toward the pole
E) All chromosome fragments would be pulled toward the pole
2 answers:
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