Question

How can the molecule myosin be involved in things as different as vesicle movement in cells and muscle contraction?

Select one:

- It is under the control of cellular zombie masters that can make it do whatever they want.

- There are different accessory proteins.

- There are different myosin genes (gene family).

- They move along different types of filaments.

- It is amphiphilic and can bind many different partners.

Answer 1

Correct option is - There are different myosing genes (gene family)

Explanation :

In humans, myosins are coded by around 40 different genes which form comprise a complete family. Each myosin gene codes for a myosin in different parts of cells and in different cells which have different function.

Option 1 is incorrect because it is unscientific and impossible.

Option 2 is incorrect since almost all myosins have Calmodulin as the common accessory protein.

Option 4 is incorrect since all myosin though different move on actin filaments only.

Option 5 is partially correct since myosin can bind many different partners but it is not due to its amphiphilic property.