Which best describes the processes of mitosis and meiosis? Cells in mitosis go through the PMAT stages twice to produce diploid cells while cells in meiosis go through PMAT stages once to produce haploid cells Cells in mitosis and meiosis go through the PMAT stages twice to produce haploid cells. Cells in mitosis go through the PMAT stages once to produce diploid cells while cells in meiosis go through PMAT stages twice to produce haploid cells. O Cells in mitosis and meiosis go through the PMAT stages once to produce diploid cells.​