Question

Microtubules that have captured a chromosome are called a:

a. ip-fiber
b. astral fiber
c. kinetochore
d. k-fiber
e. c-fiber

Answer 1

Kinetochore microtubules attach to the kinetochores of sister chromatids and are responsible for pulling the chromatids apart during cell division.

Step-by-step explanation:

Kinetochore microtubules are the microtubules that attach to the kinetochores of sister chromatids during cell division. These microtubules are responsible for pulling the chromatids apart during anaphase. On the other hand, polar microtubules do not bind to kinetochores and instead overlap at the center of the dividing cells, contributing to cell elongation. Therefore, the correct answer is c. kinetochore.