Final answer:
The mitotic spindle is responsible for pulling each duplicated eukaryotic chromosome into the daughter cells during mitosis, ensuring that each cell receives a complete set of chromosomes.
Step-by-step explanation:
The structure that allows each duplicated eukaryotic chromosome to be pulled into a daughter cell is known as the mitotic spindle.
The mitotic spindle is made up of microtubules that originate from the centrosomes and is crucial during the process of cell division, specifically mitosis.
When a cell prepares to divide, the centromere holds the two identical copies of each chromosome, known as sister chromatids, together.
During anaphase of mitosis, the sister chromatids are pulled apart as the cohesin proteins degrade.
Each chromatid, now considered an individual chromosome, is moved rapidly toward the pole of the cell that has the corresponding centrosome.
Finally, a nuclear envelope forms around each set of separated chromatids, and the cytoplasm divides, typically via a cleavage furrow, to produce two daughter cells, each with a complete set of chromosomes.