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Q. No.Dedifferentiation in plants refers to:
| 1. | The process where differentiated cells regain the ability to divide |
| 2. | The formation of specialised tissues from meristems |
| 3. | The loss of cellular contents during senescence |
| 4. | The conversion of meristematic cells into permanent tissues |
Subtopic: Differentiation, Dedifferentiation and Redifferentiation |
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Level 1: 80%+
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Which of the following correctly represents examples of dedifferentiation and redifferentiation in plants?
| 1. | Dedifferentiation: Formation of interfascicular cambium and cork cambium from parenchyma cells. Redifferentiation: Development of secondary xylem and secondary phloem from the cambium.
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| 2. | Dedifferentiation: Differentiation of sieve tube elements into companion cells. Redifferentiation: Formation of primary xylem from vascular cambium. |
| 3. | Dedifferentiation: Conversion of collenchyma into sclerenchyma in response to stress. Redifferentiation: Formation of pericycle from epidermal cells. |
| 4. | Dedifferentiation: Development of root hair from epidermal cells. Redifferentiation: Formation of phloem fibers from sieve tube elements. |
Subtopic: Differentiation, Dedifferentiation and Redifferentiation |
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Level 1: 80%+
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Interfascicular cambium and cork cambium are formed due to
| 1. | Cell division |
| 2. | Cell differentiation |
| 3. | Cell dedifferentiation |
| 4. | Redifferentiation |
Subtopic: Differentiation, Dedifferentiation and Redifferentiation |
84%
Level 1: 80%+
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In plants, the phenomenon where a cell derived from meristematic tissue loses the capacity to divide and matures to perform specific functions is best described by which term?
| 1. | Dedifferentiation | 2. | Differentiation |
| 3. | Redifferentiation | 4. | Development |
Subtopic: Differentiation, Dedifferentiation and Redifferentiation |
83%
Level 1: 80%+
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What term describes the ability of plant cells to regain the capacity to divide after differentiation?
1. Differentiation
2. Dedifferentiation
3. Redifferentiation
4. Plasticity
1. Differentiation
2. Dedifferentiation
3. Redifferentiation
4. Plasticity
Subtopic: Differentiation, Dedifferentiation and Redifferentiation |
83%
Level 1: 80%+
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