While bacteria exhibit \"simple cell division\" where the quantity of DNA remains constant following cell production, why would it be incorrect to say they undergo mitosis? Solution The mechanics and sequence of bacterial cell division and mitosis are fairly different.When cells divide by mitosis in an multicellular organism,it causes the organism to grow bigger and replace old cells with new ones.However in case of bacteria,cell division is not just a means of producing new cells instead it is a mechanism of bacerial reproduction.In case of binary fission,the prokaryotc chromosome repicates, then attaches each copy to a different part of the cell membrane. When the cell pulls apart,replicated and original chromosomes are seperated.Cytokinesis then produces two seperate cells. mitosis is a more complex process and takes place in 5 stages: prophase,anaphase,metaphase,telophase,cytokinesis. in binary fission no mitotic spindles are formed. DNA replication takes place at the same time as DNA seperation.Whereas in mitosis DNA is copied during S phase,whereas it is seperated in M phase. Therefore it would be incorrect to say binary fission and mitosis as same..