Motor proteins require which of the following structures or molecules to function in the movement of chromosomes toward the poles of the mitotic spindle?
A) intact centromeres
B) a microtubule-organising centre
C) ATP as an energy source
D) intact cohesin

Question

Quizplus · Accepted Answer

Motor proteins, such as dynein and kinesin, use energy from ATP hydrolysis to move along microtubules and pull chromosomes towards the poles of the mitotic spindle. Without ATP, these motor proteins would not be able to provide the necessary force for chromosome movement. Therefore, ATP is essential for the functioning of motor proteins in mitosis. Intact centromeres, a microtubule-organising centre, and intact cohesin are also important in mitosis but are not specifically required for the function of motor proteins.

Motor Proteins Require Which of the Following Structures or Molecules