Biology 11th Edition by Gerald Audesirk,Teresa Audesirk,Bruce Byers

تمرين 9

Chromosomes attach to spindle microtubules at structures called ______________. Some spindle microtubules, called ______________ microtubules, do not bind to chromosomes, but have free ends that overlap along the equator of the cell. These microtubules push the poles of the cell apart.