things that are identical will have the same number of parts & a chromosome is a part of a cell & a cell is a kind of thing ->  cells that are identical will have the same number of chromosomes  mitosis produces two diploid cells from a diploid parent cell & mitosis produces cells that are identical to the parent cell ->  mitosis produces two diploid cells that are identical to the parent diploid cell  cells that are identical will have the same number of chromosomes & mitosis produces two diploid cells that are identical to the parent diploid cell -> mitosis produces two cells with the same number of chromosomes as the parent cell