Question

Kinesin 1 and myosin II share each of the following features except

A) two heads.
B) dimers formed by heavy chain tails coiled around each other.
C) formation of bipolar filaments.
D) plus end directed motor activity.
E) ATPase activity.

Answer 1

Kinesin 1 and myosin II differ in their ATPase activity.

Step-by-step explanation:

Kinesin 1 and myosin II share several features, but they differ in one aspect. Each of the following features is shared by both proteins:

• Two heads
• Dimers formed by heavy chain tails coiling around each other
• Formation of bipolar filaments
• Plus end directed motor activity

However, the one feature they do not share is ATPase activity. Myosin II has ATPase activity, while kinesin 1 does not.