Discussion
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- Question
A(n) __________ is an excised piece of leaf or stem tissue used in micropropagation.
Options- A. microshoot
- B. medium
- C. explant
- D. scion
- Correct Answer
- explant
- 1. Organogenesis is
Options- A. formation of callus tissue
- B. formation of root and shoots on callus tissue
- C. both (a) and (b)
- D. genesis of organs Discuss
- 2. What is meant by 'Organ culture'?
Options- A. Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid
- B. Introduction of a new organ in an animal body with a view to create genetic mutation in the progenies of that animal
- C. Cultivation of organs in a laboratory through the synthesis of tissues
- D. The aspects of culture in community which are mainly dedicated by the need of a specified organ of the human body Discuss
- 3. In a callus culture
Options- A. increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation
- B. increasing level of auxin to a callus induces shoot formation and increasing level of cytokinin promote root formation
- C. auxins and cytokinins are not required
- D. only auxin is required for root and shoot formation Discuss
- 4. Agrobacterium based gene transfer is efficient
Options- A. only with dicots
- B. only with monocots
- C. with both monocots and dicots
- D. with majority monocots and few dicots Discuss
- 5. What is/are the benefit(s) of micropropagation or clonal propagation?
Options- A. Rapid multiplication of superior clones
- B. Multiplication of disease free plants
- C. Multiplication of sexually derived sterile hybrids
- D. All of the above Discuss
- 6. Which of the following is used in the culture of regenerating protoplasts, single cells or very dilute cell suspensions?
Options- A. Nurse medium
- B. Nurse or feeder culture
- C. Both (a) and (b)
- D. None of these Discuss
- 7. Protoplasts are the cells devoid of
Options- A. cell membrane
- B. cell wall
- C. both cell wall and cell membrane
- D. none of these Discuss
- 8. Which breeding method uses a chemical to strip the cell wall of plant cells of two sexually incompatible species?
Options- A. Mass selection
- B. Protoplast fusion
- C. Transformation
- D. Transpiration Discuss
- 9. Cellular totipotency is the property of
Options- A. plants
- B. animals
- C. bacteria
- D. all of these 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
Plant Cell Culture problems
Search Results
Correct Answer: formation of root and shoots on callus tissue
Correct Answer: Maintenance alive of a whole organ, after removal from the organism by partial immersion in a nutrient fluid
Correct Answer: increasing level of cytokinin to a callus induces shoot formation and increasing level of auxin promote root formation
Correct Answer: only with dicots
Correct Answer: All of the above
Correct Answer: Both (a) and (b)
Correct Answer: cell wall
Correct Answer: Protoplast fusion
Correct Answer: plants
Correct Answer: dedifferentiation
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