Discussion
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- Question
Protoplast fusion technique generally involves
Options- A. isolation only
- B. isolation and fusion
- C. isolation, fusion and culturing
- D. hybridization between two species
- Correct Answer
- isolation, fusion and culturing
- 1. During nitrogen fixation the enzyme nitrogenase catalyse the reaction. The reaction is high energy demanding which require approximately
Options- A. 12 ATP
- B. 18 ATP
- C. 25 ATP
- D. 7 ATP Discuss
- 2. Which of the following bacteria genus is capable of oxidizing ammonia (NH4)?
Options- A. Nitrospina
- B. Nitrobacter
- C. Nitrosococcus
- D. Nitrosobacter Discuss
- 3. The chief source of nitrogen for green plants is
Options- A. atmospheric nitrogen
- B. nitrates
- C. ammonium salts
- D. low molecular weight- organic nitrogenous compound Discuss
- 4. The disorder in which of the following may cause "Ehlers-Danlos Syndrome"?
Options- A. Dlashin protein
- B. Collagen protein
- C. Fibrin protein
- D. Globulin protein Discuss
- 5. EMBL 3 and EMBL 4 are replacement vectors, which can clone DNA up to
Options- A. 6-7 kb
- B. 15-25 kb
- C. 40-44 kb
- D. 1-2 kb Discuss
- 6. Sherry is a type of
Options- A. wine
- B. beer
- C. brandy
- D. none of these Discuss
- 7. Maximum size of foreign DNA that can be inserted into a replacement vector is
Options- A. 25-30 kb
- B. 18-20 kb
- C. 20-25 kb
- D. 40-50 kb Discuss
- 8. Small simple molecules are
Options- A. poor antigens
- B. rich antigens
- C. moderate antigens
- D. heterophilic antigens Discuss
- 9. An established cell line can be called where it has been subcultured at least
Options- A. 70 times at an interval of 3 days between subcultures
- B. 40 times at an interval of 3 days between subcultures
- C. 70 times at an interval of 1 day between subcultures
- D. 50 times at an interval of 3 days between subcultures Discuss
- 10. Which of the following elements is likely to form the least polar covalent bond with hydrogen?
Options- A. Nitrogen
- B. Oxygen
- C. Carbon
- D. Phosphorus Discuss
More questions
Correct Answer: 18 ATP
Correct Answer: Nitrosococcus
Correct Answer: nitrates
Correct Answer: Collagen protein
Correct Answer: 15-25 kb
Correct Answer: wine
Correct Answer: 20-25 kb
Correct Answer: poor antigens
Correct Answer: 70 times at an interval of 3 days between subcultures
Correct Answer: Carbon
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