Colchicine Is a Drug That Blocks Formation of the Mitotic

question 38

Multiple Choice

Colchicine is a drug that blocks formation of the mitotic spindle apparatus.What would you expect if you applied colchicine to a petri dish of bacteria?

• A) The bacteria would be unable to divide, because they could not form the spindle apparatus for mitosis.
• B) The bacteria would continue to divide, because they carry out mitosis without a spindle apparatus.
• C) The bacteria would continue to divide, because they carry out binary fission, which does not require a spindle apparatus.
• D) The bacteria would be unable to divide, because they would be unable to form new cell wall partitions.
• E) The bacteria would increase their rate of mitosis, so the number of cells would rapidly increase.

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