Question

Which of the following is (are) required for motor proteins to function in the movement of chromosomes toward the poles of the mitotic spindle?

1) ATP
2) Microtubules
3) Kinesin
4) Dynein

Answer 1

ATP, microtubules, kinesin, and dynein are all required for motor proteins to function in the movement of chromosomes towards the poles of the mitotic spindle.

Step-by-step explanation:

The required components for motor proteins to function in the movement of chromosomes toward the poles of the mitotic spindle are:

1. ATP: Motor proteins, such as dynein and kinesin, are ATPases that use the energy from ATP hydrolysis to power their movement.
2. Microtubules: These form the tracks along which the motor proteins move. Dynein and kinesin walk along microtubules to transport cargo.
3. Kinesin and Dynein: These are motor proteins that interact with microtubules and play a crucial role in the movement of chromosomes towards the poles of the mitotic spindle.