Q. Autoclaving is carried at Dry heat Atmospheric pressure 120oC All of these Answer: 120oC

Q. When food material are preserved at a temperature just above freezing temperature, the process is called. Freezing Pasteurisation Chilling Frosting Answer: Chilling

Q. Which of the following induces dimerisation of thymine? X-ray U.V. rays ã-rays None of these Answer: U.V. rays

Q. Separation of a single bacterial colony iscalle Isolation Separation Pure culturing All of these Answer: Isolation

Q. Temperature required for pasteurizationis Above 150oC Below 100oC 110oC None of these Answer: Below 100oC

Q. Elek’s gel diffusion test is used for the detection of Tetani toxin Cholera toxin Diophtheria toxin Toxoid Answer: Diophtheria toxin

Q. Which of the following is ion iz ingradiation? U.V. ray IR γ-rays None of these Answer: γ-rays

Q. A culture medium the exact composition of which is not known was called as Simple Complex Defined Natural Answer: Simple