If you were to fix a fish keratocyte and stain it with fluorescent antibodies for myosin II, where would you see the myosin II?
A)in the advancing lamellipodium edge
B)in the rear of the cell
C)in a band where the rear of the lamellipodium joins the rest of the cell
D)around the nucleus
E)surrounding the mitochondria

Question

Quizplus · Accepted Answer

Myosin II is typically found in a band-like structure at the rear of the lamellipodium where it connects to the rest of the cell. This is known as the actomyosin contractile ring and is responsible for generating the force needed for cell migration. Therefore, in a fixed fish keratocyte stained with fluorescent antibodies for myosin II, you would see the myosin II predominantly in this band-like structure.

If You Were to Fix a Fish Keratocyte and Stain