Question

When and how is the spindle formed?

Answer 1

The spindle, in the process of mitosis, is formed during prophase. Once the nuclear envelope breaks and releases the chromatin, the centrosomes begin to move to the opposite sides of the cell and latch onto the centromere of the newly formed chromosomes.

Answer 2

It is formed in prophase of meiosis

Step-by-step explanation:

The spindle is formed under the direction of the microtubule organizing center (MTOC).

The spindle develops in the cytoplasm of a cell in prophase of either mitosis or meiosis. It is a barrel-shaped structure, made up of many spindle fibers, which are microtubules of the cytoskeleton. The two ends of the spindle taper towards points that are called the poles of the spindle, and these two points in the cytoplasm of the mother-cell will be the sites of formation of the daughter-nuclei in telophase.