Question

what is the function of the mitotic spindle? keeping sister chromatids connected condensing chromosomes pinching a cell into two daughter cells separating sister chromatids

Explanation:

The mitotic spindle is composed of microtubules. During mitosis, it attaches to the kinetochores of sister chromatids. In anaphase, the shortening of spindle fibers pulls the sister chromatids apart towards opposite poles of the cell.

• Keeping sister chromatids connected is the role of cohesin proteins, not the mitotic spindle.
• Chromosome condensation is mainly due to the action of condensin proteins.
• Pinching a cell into two daughter cells (cytokinesis) in animal cells is done by the contractile ring (actin - myosin filaments), and in plant cells, a cell plate forms.

Answer:

separating sister chromatids