What causes the furrow during cleavage?
A) It is a depression caused by the formation of a new cell wall.
B) A ring of contractile protein fibers pinches the cell in two.
C) Connecting proteins that had been binding adjacent cells together now dissolve.
D) A loss of water occurs.

Question

Quizplus · Accepted Answer

During cleavage, a ring of contractile protein fibers made of actin and myosin pinches the cell in two. This ring is called the contractile ring and it contracts like a drawstring to create a furrow that eventually separates the two daughter cells.

What Causes the Furrow During Cleavage