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What is Tyndallisation is a type of - and explain in detail?
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