Answer :
The structures that line up sister chromatids on the equatorial plate during metaphase are referred to as centrosomes.
What are the stages of metaphase?
Metaphase is the second stage of mitosis. At this stage, the nucleus and nuclear membrane of the cell are not visible. Each kinetochore at the centromere is in one centrosome by spindle fibers. Then, the paired chromatids move to the center of the cell (the equatorial plane) and form the metaphase plate.
The position of the chromosome, which is located in the center of the cell, allows the number of chromosomes to be counted accurately and the shape of the chromosomes can also be observed.
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