The structures that line up the chromatids on the equatorial plate during metaphase are called
A) asters.
B) polar and kinetochore microtubules.
C) centrosomes.
D) centrioles.
E) poles.

Question

Quizplus · Accepted Answer

Polar microtubules pull the spindle poles apart, while kinetochore microtubules attach to the kinetochores of the sister chromatids and pull them towards the equator to line them up on the metaphase plate. Astors are structures that are found at the poles of the cell during mitosis and play a role in spindle formation. Centrosomes are the microtubule organizing centers of the cell, and centrioles are structures found within the centrosomes. Poles are the opposite ends of the spindle apparatus.

The Structures That Line Up the Chromatids on the Equatorial