1. The process of gene transfer between bacterial cells that involves the uptake of naked DNA molecules is classified as which of the following?

Question 1 of 20

2. Which system below is concerned chiefly with phagocytosis and antibody formation?

Question 2 of 20

3. Techoic acid is present in

Question 3 of 20

4. Which of the following are used in protective vaccines because they retain their antigenicity but have lost their toxicity?

Question 4 of 20

5. Which of the following is the most frequently employed diagnostic laboratory technique for the microscopic detection of antigens in tissue secretions or in cell suspensions?

Question 5 of 20

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

Question 6 of 20

7. Which of the following is not a feature of anaphylaxis?

Question 7 of 20

8. A 39-year old female presents with fever. The blood culture from the patient grows gram positive small to medium coccobacilli that are pleomorphic occurring in short chains. Direct wet mount from the culture shows tumbling motility. The most likely organism is

Question 8 of 20

9. Positive Shick's test indicates that person is

Question 9 of 20

10. Aflatoxin is produced by

Question 10 of 20

11. In either an allergic reaction or a parasitic Infection, which of the following cells increase in number in the bloodstream?

Question 11 of 20

12. Maltess cross seen on polarizing microscopy in -

Question 12 of 20

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

Question 13 of 20

14. 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:

Question 14 of 20

15. Which of these is true about antibodies:

Question 15 of 20

16. Organism most resistant to sterilization:

Question 16 of 20

17. Immunity that is conferred to the foetus by transfer of IgG and IgA antibodies is called as

Question 17 of 20

18. Virus is usually cultured in:

Question 18 of 20

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

Question 19 of 20

20. Oxidase positive Gram-negative bacilli that do not show coloured colonies on Mac-Conkey Media

Question 20 of 20