Movement of the chromosomes during anaphase would be most affected by a drug that

Movement of the chromosomes during anaphase would be most affected by a drug that 



A) reduces cyclin concentrations.
B) increases cyclin concentrations.
C) prevents elongation of microtubules.
D) prevents shortening of microtubules.
E) prevents attachment of the microtubules to the kinetochore.





Answer: D


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