Question

The drug cytochalasin B blocks the function of actin. Whichof the following aspects of the cell cycle would be mostdisrupted by cytochalasin B?

A) spindle formation
B) spindle attachment to kinetochores
C) DNA synthesis
D) cell elongation during anaphase
E) cleavage furrow formation

Answer 1

The answer is (e) cleavage furrow formation

Step-by-step explanation:

Cytochalasin B is a chemical agent which inhibits cytoplasmatic cleavage without preventing nuclear division, As a consequence, cells that have divided once in the presence of Cytochalasin B will present two nuclei, under this condition, all the products of mitosis are included in the same cell.

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Answer 2

E) cleavage furrow formation

Step-by-step explanation:

Based on the information provided within the question we can say that the aspect of the cell cycle that would be most disrupted by cytochalasin B would be the cleavage furrow formation. This aspect is an indentation that shows up when the cell is about to divide and is allowed to do this because of the proteins actin and myosin. Since cytochalasin B blocks the function of actin then the cleavage furrow formation would not be allowed to happen, therefore it would be the most affected.