A centrosome is
A) a cylindrical structure made up of nine triplets of microtubules.
B) a chromosomal region that connects sister chromatids during mitosis and attaches them to the spindle.
C) a protein structure that binds centromeres and mediates the attachment of chromosomes to the spindle.
D) the major microtubule-organizing center in animal cells.

Question

Quizplus · Accepted Answer

A centrosome is the major microtubule-organizing center in animal cells. It consists of two centrioles surrounded by protein and is responsible for organizing and anchoring microtubules during cell division. Option A describes a cilium, option B describes a kinetochore, and option C describes a protein complex called the kinetochore-microtubule attachment site.

A Centrosome Is