<prompt> The replicative E. coli can multiply and produce daughter cells in?20 minutes24 hours20 days4 weeks  <response>: Ans. a 20 minutes. Ref. Textbook of Microbiology by Ananthnarayan, 7th275BacteriaGeneration time1Lepra bacillus12-13 days 8-42 days2Tubercle bacillus14 hours3Coliform bacillus20 minutes 