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- Question
Fusion of karyoplast with the enucleated cell is achieved in presence of
Options- A. cytochalasin B
- B. polyethylene glycol
- C. both (a) and (b)
- D. alcohol
- Correct Answer
- polyethylene glycol
- 1. How many chromatids does a diploid body cell contain just prior to cell division?
Options- A. 23
- B. 46
- C. 69
- D. 92 Discuss
- 2. As the size of a cell decreases, the ratio of its surface area to volume:
Options- A. increases
- B. decreases
- C. stays the same
- D. None of these Discuss
- 3. Small circular pieces of DNA that are found in the cytoplasm of a prokaryotic cell are called:
Options- A. capsules
- B. nucleoids
- C. plasmids
- D. ribosomes Discuss
- 4. Maximum amount of foreign DNA introduced into SV 40 viruses is
Options- A. 10 kb
- B. 5 kb
- C. 2.5 kb
- D. 1 kb Discuss
- 5. Which type of cell actually secrets antibodies?
Options- A. plasma cells
- B. T cells
- C. macrophages
- D. dendritic cells Discuss
- 6. The cellular organelle associated with photosynthesis is the
Options- A. golgi complex
- B. mitochondrion
- C. lysosome
- D. chloroplast Discuss
- 7. Which cell-based plant technology involves the combining of two cells without cell walls from different species?
Options- A. Clonal propagation
- B. Cybridization
- C. Protoplast fusion
- D. Mutant selection Discuss
- 8. The yield of the antibiotic depends upon
Options- A. pH of the medium
- B. age of the inoculum
- C. composition of the medium
- D. all of these Discuss
- 9. Which of the following are produced in high copy number?
Options- A. YEp
- B. YRp
- C. Both (a) and (b)
- D. YCp Discuss
- 10. Which is/are the disadvantage/(s) of using IAA in plant cell culture media?
Options- A. It is unstable in solution
- B. Gets easily oxidized
- C. Conjugated to inactive form by plant cells
- D. All of the above Discuss
More questions
Correct Answer: 92
Correct Answer: stays the same
Correct Answer: plasmids
Correct Answer: 2.5 kb
Correct Answer: plasma cells
Correct Answer: chloroplast
Correct Answer: Protoplast fusion
Correct Answer: all of these
Correct Answer: Both (a) and (b)
Correct Answer: All of the above
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