Metaphase plate formed by spindle fibers that originate from centrioles.
Explanation:
Centriole:
Centrioles are cell organelles, located near the nucleus, that help in cell division.
In a non-dividing cell, centrioles are not visible.
Centrioles form the spindle network that helps in separating the homologous chromosomes in mitosis and sister chromatids in meiosis.
Centrioles are made up of nine triplets of microtubules that are a special type of fiber made up of the protein, tubulin.
Mitotic Spindle:
The mitotic spindle is the structure that starts developing early in the prophase and remains till the cell completely divides into two daughter cells.
Prophase involves the elongation of these spindle fibers towards the chromosomes.
During the metaphase, the chromosomes arrange themselves on the spindle fiber network or the metaphase plate.
During anaphase, these fibers pull the chromosomes apart to opposite poles of the cell. This ensures division of equal number of chromosomes in mitosis and half in case of meiosis.
