Joseph went to a copy center and used a copy machine to make a duplicate set of 46 pages. joseph then stapled every copied sheet to its original. this is similar to how a cell replicates its chromosomes in mitosis. for what reason would a cell do something similar during mitosis?

It's equal to theat a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division. If all conditions are ideal, the cell is now ready to move into the first phase of mitosis.the proceed at prophase where it condense to form respective sister chromatids