What happen during metaphase stage of mitosis?
the changes that occur during this is the nuclear membrane disappears completely, in animal cells, the 2 pairs of centrioles align at the opposite poles at the cell, polar fibers continue to extend from the poles to the center of the cell, chromosomes move reandomly untill they attatch to polar fibers from both sides of their centromeres, chromosomes align at the metaphase plate at right angles to the spindle poles, and chromosomes are held at the metaphase plate by equal forces of the polar fibers pushing on the centromeres of the chromosomes.