1. Which of the following is mainly produced by the activity of anaerobic bacteria on sewage?
2. Which of the following is a gram- negative bacterium?
3. The most common fungal partners of mycorrhiza are _______ species
4. Semiconservative replication of DNA was first demonstrated in
5. One of the free- living anaerobic nitrogen- fixer is
6. Ethanol is commercially produced through a particular species of
7. Cyanobacteria serves as important biofertilizers in the fields of
8. Bacterial leaf blight of rice is caused by a species of :
9. Southern blot technique is connected with
10. Scientists pin pointed the location of colour processing centres in human visual cortex by means of
11. Blood cancer is
12. A sexually transmitted disease caused by bacteria is
13. Which one of the sexually transmitted diseases is correctly matched with its pathogen?
14. Cyclosporine is useful in
15. Lysis of foreign cells is mediated through
16. Passive immunity is
17. A disease due to allergic reaction is
18. Type of immunoglobulin present in colostrum/ mother's milk is
19. Antiserum has
20. Azolla is used as a biofertiliser because it
21. Most famous nitrogen fixing bacterium/ biofertilizer is
22. Which is a microbial insecticide?
23. Pomato is
24. Plant raised from single germinating pollen grain under cultural conditions would be
25. Variations observed during tissue culture of some plants are known as
26. Who could grow Tomato roots successfully and develop the technique of tissue culture for the first time
27. In callus culture, roots can be induced by the supply of
28. In Tobacco callus, which one shall induce shoot differentiation in combinaation of auxin and cytokinin
29. Which ones produce androgenic haploids in anther cultures
30. On culturing the young anther of a plant a botanist got a few diploid plants alongwith haploid plants.Which of the following might have given the diploid plants
31. A major use of embryo culture is in
32. A totipotent cell means
33. Hybrid vigour is eroded through
34. Four inbred/ pur line of Maize are crossed.The cross is
35. Emasculation of flowers is carried out through removal of
36. Polyploidy is induced by
37. Colchicine brings about
38. Narcotic drugs,Charas, Bhang and Ganja are obtained from
39. Drugs which induce dreamy state of unconciousness are
40. Stimulant cocaine is obtained from
41. LSD is formed from
42. Indian state having highest population density is
43. Cancerous cells can be easily destroyed by radiations because of
44. Which one is correctly matched?
45. Which one is employed for image making in CT scan
46. What is true about T-lymphocytes in mammals?
47. Antibodies are produced by
48. Interferon suppresses the pathogenicity of
49. Events in body defence against infection is
50. Immunoglobulin that increases in number during allergy is