1. The single most important laboratory test for determining the virulence of staphylococci is

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2. Dimorphism in microorganisms is characterized by the capability to produce

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3. Standard agar recommended for susceptibility tests using antibiotic sensitivity disks

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4. The role played by major histocompatibility Complex-1 and -2 is to

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5. The classic opportunistic infection in acquired immune deficiency syndrome is:

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6. Which of the following is anaerobic:

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7. Ovalbumin was injected into a Rabbit. Which of the following classes of Antibiotics are likely to be produced initially:

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8. Brucella is transmitted by all expect:

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9. A dark field microscope would.be useful in examining blood for

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10. Optimal time and temperature required for sterilization in an autoclave is

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11. A boy with skin ulcer on leg, culture reveals beta hemolysis. Cultures from school children with sore throat some days back also revealed beta hemolysis. What is the similarity between both

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12. Which of the following is false about clostridium perfringes -

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13. Which of the following immunoglobulins is a pentamer

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14. Which type of infection listed below often causes leukocytosis?

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15. A five year old child presents with pustular lesions on the lower legs. The culture from the lesion showed hemolytic gram positive coccii. Provisional diagnosis of Group A streptococcal pyoderma can be done by:

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16. Rh incompatibility is which type of hyper sensitivity reaction?

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17. The property of splitting sugars by bacteria is called:

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18. The chemotactic factor is

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19. Hepatitis B infectivity is

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20. Multiple drug resistance of bacteria depends on which of the following:

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