Bacteriophage was discovered by - (1) Felix d'Herelle and Frederick Twort (2) Kluyver and Niel (3) Paul Ehrlich (4) Burrill and Smith

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(1) Felix d'Herelle and Frederick Twort Explanation: Bacteriophage refers to any of a group of viruses that infect bacteria. Bacteriophages were discovered independently by Frederick W. Twort in Great Britain (1915) and Felix d'Herelle in France (1917). D'Herelle coined the term Bacteriophage, meaning "bacteria eater:.

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