Discussion
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- Question
The crystal-like material sometimes found in wine bottles is
Options- A. residual diatomaceous earth
- B. tannin
- C. prevented by cold stabilizing
- D. caused by excessive malic acid
- Correct Answer
- prevented by cold stabilizing
- 1. The primary B cell receptor is
Options- A. IgD
- B. IgG
- C. IgA
- D. IgE Discuss
- 2. When a gardener takes a cutting from a plant, indicating that he has made a
Options- A. clone
- B. mutation
- C. new species
- D. new variety Discuss
- 3. The centromeres move toward the poles in __________ .
Options- A. anaphase
- B. interphase
- C. metaphase
- D. prophase Discuss
- 4. Which of the following begins when pairs of sister chromatids align in the center of the cell?
Options- A. Anaphase
- B. Interphase
- C. Metaphase
- D. Prophase Discuss
- 5. Normally CO2 and O2 enter a plant by
Options- A. osmosis
- B. active transport
- C. diffusion
- D. evaporation Discuss
- 6. Lagers are the beer in which fermentation is carried out using
Options- A. top yeast
- B. bottom yeast
- C. either of these
- D. middle yeast Discuss
- 7. P1 cloning vector is the example of
Options- A. plasmid
- B. cosmid
- C. bacteriophage
- D. phagemid Discuss
- 8. What is the concentration of CO2 required for culturing animal cells?
Options- A. 2-5%
- B. 1-10%
- C. 10-15%
- D. 15-20% Discuss
- 9. The cohesion-tension theory of water movement helps to explain how water moves from soil into root?
Options- A. Through the phloem
- B. From leaf to root
- C. Through the xylem
- D. Into the guard cells Discuss
- 10. The phenomenon of the reversion of mature cells to the meristematic state leading to the formation of callus is known as
Options- A. redifferentiation
- B. dedifferentiation
- C. either (a) or (b)
- D. none of these Discuss
More questions
Correct Answer: IgD
Correct Answer: clone
Correct Answer: anaphase
Correct Answer: Metaphase
Correct Answer: diffusion
Correct Answer: bottom yeast
Correct Answer: bacteriophage
Correct Answer: 1-10%
Correct Answer: Through the xylem
Correct Answer: dedifferentiation
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