Question

The principal microtubule-organizing center in animal cells is the ____________. A. centrosome. B. centromere. C. kinetochore. D. cell cortex.

Answer 1

Answer:

A. centrosome

Explanation:

• The centrosome is known as the main microtubule-organizing center in the animal cells. 
• The centrosome constitutes of two centrioles and is surrounded by the pericentriolar material which is nothing but a structured matrix of proteins. 
• It is the center through which the microtubules emerge.
• In animal cells, the centrosome is associated with the formation of spindle fibres.