<prompt> Tyndallisation is a type of -Intermittent sterilizationPasteurisationBoilingAutoclaving  <response>: Ans. is a i.e., Intermittent sterilization Tyndallization intermittent sterilization . Media containing sugar or gelatin are sterilized by heating at 100degc for 20 minutes on three successive days. . First exposure kills all vegetative bacteria. . Spores germinate and are killed on subsequent exposures 