1. The ability of the immune system to recognize self antigens versus non-self antigens is an example of:
2. A mutant with a growth requirement for specific nutrient is known as:
3. Specific DNA segments that can repeatedly insert into one or more sites or into one or more genomes is known as :
4. Acid fast stain is used for which bacterium?
5. A RNA primer is essential for:
6. Human genome project was launched in :
7. Initiation codon for protien systhesis in eukaryotes is :
8. In N2 fixation, what are co-factors required with nitrogenase activity ?
9. An antiviral chemical produced by the animal cell is :
10. Methanopyrus, Pyrolobus and Pyrodictium are :
1 out of 6
11. In the lysogenic state of lambda phage :
12. F- plasmid is copied using a process called :
13. Life cycle in Polysiphonia is :
14. Frankia establishes :
15. Who coined the term bacteriophage for the first time ?
17. Stone leprosy is caused to stone monument by :
18. Kirby- Baeur method is a disc diffusion test to detect :
19. The group of organisms which uses light as the energy source and CO2
as the principle carbon source is called :
20. A fixed relationship between the initial and final number of cells present in a culture after exponential growth is given mathematically by :
2 out of 6
21. The most commonly used micro-organism in alcohol fermentation is :
22. The best biofertilizer for rice is :
23. What is site of action of penicillin antibiotic ?
24. In an enzyme- catalyzed reaction, the energy of activation is :
25. A macrophage dendritic cell, or B cell that presents processed antigen peptide to a T cell is :
26. FAME technique used for identification of bacterial species is based on :
27. Hormones are mostly :
28. Viral genome incorporated into host DNA is called :
29. A positively controlled operon functions through the presence of :
30. The outer membrane of gram negative bacteria is permeable to small molecules due to the presence of :
3 out of 6
31. Which of the following is not a serological technique ?
32. Where do bacteroids occur ?
33. Chlamydospore is the resting stage of which organism ?
34. How many ATP molecules are requred for the conversion of one N2 to 2NH4+
during biological N2 fixation ?
35. According to the Central Dogma transfer of genitic information proceeds from:
36. Covid-19 caused by which organism?
37. Nod factor produced by Rhizobium species is unable to initiate:
38. A legume Sesbania rostrata is having:
39. Which of the following genes is not transcribed from the promoter for β- galactosidase?
40. Intercellular communication between microbial cells for formation of biofilm in Pseudomonas species is mediated by :
4 out of 6
41. Downstream process in fermentation technology relates to:
42. Majority of mRNAs are attached with a tail of :
43. The term cistron was given by:
44. Which of the following fungi has a cellular protoplasmic body and moves by pseudopodia?
45. Which of the following is common to DNA replication and transcription?
46. Human genome comprises :
47. Which of the following bacterium is ATP parasite?
48. Who discovered ' viroids '?
49. A nonsusceptible bacterium can be artificially infected by phage DNA is known as:
50. This organism forms an extensively branched vegetative mycelium which often organizes into pigmented leathery colonies with aerial mycelium producing chains of spores:
5 out of 6
51. Which of the following is the largest living bird?
52. Which of the plant virus has DNA?
53. Pathogenic bacteria are good example of :
54. Who gave the concept of the Chromosomal basis of inheritance?
55. Bacterial conjugation can be used to map genes on bacterial chromosome. Which of the following would be the best donor strain to use if we wish to map the bio gene?
56. Who discovered DNA polymerase?
57. First virus to be studied was:
58. Azotobacter contributes to the nitrogen fixation in soil where it exists as:
59. Active transport in prokaryotes is always mediated by:
60. The prime research area of MW Beijerinck was :
6 out of 6
