Animation Assessment: Mitotic Cell Division

BIOL 1020 Rebecca Riggs

In the figure, which lettered item is a centromere?

D

In the figure, which lettered item is a centrosome?

A

In the figure, which lettered item is a chromosome?

C

In the figure, which lettered item is a chromatid?

E

The contractile ring that leads to cytokinesis in animal cells has been shown to be made primarily of actin filaments (microfilaments).

Which motor protein would you predict is involved in the contraction of the ring?

myosin

Under experimental conditions, we can delete the gene for the motor protein involved in the contraction of the contractile ring during animal cell cytokinesis.

Which of the results might you predict?

additional rounds of the cell cycle continue producing a multinucleate cell

The process of cytokinesis involves components of the cytoskeleton. It is most similar to what other cytoskeletal function?

muscle contraction