Consider an animal cell in which motor proteins in the kinetochores normally pull the chromosomes along the kinetochore microtubules during mitosis. suppose, however, that during metaphase, this cell was treated with an inhibitor that blocks the function of the motor proteins in the kinetochore, but allows the kinetochore to remain attached to the spindle. the inhibitor has no effect on any other mitotic process, including the function of the nonk

To complete the question; The inhibitor has no effect on any other mitotic process, including the function of the nonkinetochore microtubules.
Answer yes or no to the following questions concerning this animal cell that has been treated with the inhibitor;
1. Will this cell elongate during mitosis? The answer is Yes. 
The cell will elongate because the function of these micro proteins will not affect the elongation of the cell during cell division. Thus the elongation of the cell would still take place.

2. Will the sister chromatid separate from each other? The answer is Yes
Separation of sister chromatid during anaphase is independent of the function of the microproteins that have been inhibited and thus it would take place.

3. Will the chromosomes move to the poles of the cell? The answer is No
The chromosomes wont move to the poles as this is the function of the microproteins that have been inhibited, and since inhibition impairs their functioning, movement of the chromosomes to the pole wont take place.