The drug cytochalasin B blocks the function of actin. Which of the following aspects of the cell cycle would be most disrupted by cytochalasin B?
A)spindle formation
B)spindle attachment to kinetochores
C)DNA synthesis
D)cell elongation during anaphase
E)cleavage furrow formation

Question

Quizplus · Accepted Answer

Cytochalasin B disrupts the function of actin, which is involved in the formation of the contractile ring during cytokinesis. Cleavage furrow formation, which is the process of dividing the cell during telophase, depends on the contractile ring, and therefore, it would be most disrupted by cytochalasin B.

The Drug Cytochalasin B Blocks the Function of Actin