Question

multiple choice question
what is the spindle of a cell?

an organized network of microfilaments that enables a cell to withstand stretching and compression
a structure formed from protein fibers that separates chromosomes during cell division
a collection of intermediate filaments, specific to nerve cells, that strengthens the axons

Explanation:

To determine the correct answer, we analyze each option:

• The first option describes the cell's cytoskeleton (microfilaments for mechanical support), not the spindle.
• The second option: The cell spindle (mitotic spindle) is made of protein fibers (microtubules) and functions to separate chromosomes during mitosis/meiosis (cell division).
• The third option refers to structures in nerve cells (like neurofilaments), not the spindle.

Answer:

B. A structure formed from protein fibers that separates chromosomes during cell division