A mutant cell line is produced in which a motor protein specific for astral micr

Question

A mutant cell line is produced in which a motor protein specific for astral microtubules is inactivated. Which of these statements accurately describes the status of the cells and functional consequence of the mutation? The cells will be stuck in telophase because the astral microtubule motors cannot pull on the cell cortex to create the cleavage furrow to allow the cell to progress through cytokinesis The cells will be stuck in prophase because the astral microtubule motor proteins cannot pull the nuclear envelope apart. The cells will be stick in anaphase because the astral motor proteins cannot help put the spindle poles. The cells will be stuck in metaphase because the astral microtubule motors will not be able to push the spindle poles apart.

Explanation / Answer

During anaphase, the motor proteins have some specific function, they attached with the spindles and carry them to the spindle poles and make the cell longer than its normal size.

In the absense of this astral microtubules motor protein, it will not help in pulling out the spindles to the spindle poles.

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