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Differentiation, Dedifferentiation and Redifferentiation MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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EASY An example of dedifferentiating cells is
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Differentiation, Dedifferentiation and Redifferentiation
- The cells derived from root apical and shoot-apical meristems and cambium differentiate and mature to perform specific functions. This act leading to maturation is termed as differentiation.
- During differentiation, cells undergo few to major structural changes both in their cell walls and protoplasm.
- For example, to form a tracheary element, the cells would lose their protoplasm. They also develop a very strong, elastic, lignocellulosic secondary cell wall, to carry water long distances even under extreme tension
- The living differentiated cells, that by now have lost the capacity to divide can regain the capacity of the division under certain conditions.
- This phenomenon is termed as dedifferentiation.
- For example, the formation of meristems – interfascicular cambium and cork cambium from fully differentiated parenchyma cells.
- The dedifferentiated tissues are able to divide and produce cells that once again lose the capacity to divide but mature to perform specific functions, i.e., get redifferentiated.
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