The process of mitosis ensures the faithful distribution of genetic material to daughter cells through a series of well-defined stages. Here's a detailed breakdown of the accurate statement concerning how this occurs:
During mitosis, each duplicated chromosome, which is composed of two sister chromatids, becomes attached to the microtubules of the mitotic spindles at a region known as the centromere. During the anaphase stage of mitosis, the mitotic spindles pull the sister chromatids—now considered individual chromosomes—toward opposite poles of the cell. As a result, two identical sets of chromosomes (each containing the same genetic information) are formed at each pole of the cell.
The correct statement from the options you provided is:
"During mitosis, each chromatid of a duplicated chromosome becomes attached to the microtubule of one of the mitotic spindles. At anaphase, mitotic spindles pull the chromatids toward the poles of the cell, therefore forming two identical chromosomal sets at each pole."
This description accurately reflects the mechanisms of mitosis by emphasizing the attachment of chromatids to the mitotic spindle and ensuring that sister chromatids move apart correctly to guarantee that each daughter cell will receive an identical copy of the original cell's DNA.