Which of the following statements about the mitotic spindle is true?
A) It is composed of polar and kinetochore microtubules, both of which attach to chromosomes.
B) It is composed of actin and myosin microfilaments.
C) It is composed of kinetochores at the metaphase plate.
D) It is composed of microtubules, which help separate the chromosomes to opposite poles of the cell.
E) It originates only at the centrioles in the centrosomes.

Question

Quizplus · Accepted Answer

The mitotic spindle is composed of microtubules that help separate the chromosomes to opposite poles of the cell. These microtubules include polar microtubules that extend from each spindle pole and overlap in the middle of the spindle, as well as kinetochore microtubules that attach to the kinetochores of each chromosome and pull the chromosomes towards the poles during cell division.

Which of the Following Statements About the Mitotic Spindle Is