Which of the Following Would You Expect to Observe in an in Vitro

question 13

Multiple Choice

Which of the following would you expect to observe in an in vitro experimental mixture containing microtubules anchored by their minus ends to centrosomes,polystyrene beads with kinesin or dynein motors attached,and ATP?

• A)movement of kinesin-attached beads along microtubules away from centrosomes
• B)movement of dynein-attached beads along microtubules toward from centrosomes
• C)movement of beads in either direction along a single microtubule
• D)removal of ATP stopping all bead movement along microtubules
• E)All would be expected.

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