As the chromosomes move during mitosis, the

Question

a. polar spindle fibers increase in length and slide past one another.

b. polar spindle fibers decrease in length and slide past one another. c. polar spindle fibers create a pull.

d. centromere fibers increase in length.

e. centromere fibers create a push.

Answer 1

This is a really badly worded question.  

It's actually none of these.  The kinetochore uses enzymes to degrade the spindle fibers and pull the chromsomes apart.

Answer 2

do not relay on this one, but guess it is C.

Answer 3

c