Question Detail
Question
Spindle fibers are formed by the
Correct Answer
Option D is the correct answer.
Detailed Explanation
The centrosome is the main microtubule-organizing center in animal cells. It organizes the spindle fibers during cell division. In animal cells, the centrosome contains a pair of centrioles, but the centrosome itself is the structure that forms the spindle.
Hint
What structure organizes the microtubules that separate chromosomes during cell division?