Administration of a drug that inhibits the action of motor proteins moving towards the plus ends of their respective cytoskeletal elements would affect which of the following? 1) Movement of a pair of sister chromatids back and forth across the cell, resting at the metaphase plate 2) Division of the cytoplasm into two daughter cells 3) Movement of polar microtubules, serving to distance spindle poles further from each other

Question

Mikayla Watts

Biology

25 September, 19:38

Administration of a drug that inhibits the action of motor proteins moving towards the plus ends of their respective cytoskeletal elements would affect which of the following? 1) Movement of a pair of sister chromatids back and forth across the cell, resting at the metaphase plate 2) Division of the cytoplasm into two daughter cells 3) Movement of polar microtubules, serving to distance spindle poles further from each other

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Emelia Strickland · Answer 1

All of the answers are correct

Explanation:

Motor proteins that use microtubules as substrate are called microtubule motors. They move along microtubules through interaction with tubulin. Examples of such motor proteins are dynein and kinesin. There are two basic types of microtubule motors: plus-end motors and minus-end motors. They differ in direction in which they move along the microtubule.

Kinesins move towards the positive end of a microtubule and they are involved in cell division.