Question

what differentiation, dedifferentiation and redifferentiation with example​

Answer 1

Dedifferentiation: A differentiated cell can regain its capacity for cell division under certain conditions. This phenomenon is called dedifferentiation.

Redifferentiation: A dedifferentiated plant cell once again loses its capacity to divide and becomes mature. This phenomenon is called redifferentiation.

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Answer 2

Differentiation :

$\bigstar$ The root apical meristem, shoot apical meristem undergo permanent changes in their structure, size, biochemistry and protoplasm contents and enabling the cells to perform a specific function is known as differentiation

$\bigstar$ Example : Chlorenchyma and tracheary elements.

Dedifferentiation :

$\bigstar$ Differentiation cells loose their ability to divide and form permanent cells but some cells regain their capacity to divide under certain conditions. This phenomenon is known as dedifferentiation

$\bigstar$ Example : Cork cambium, interfascicular cambium.

Redifferentiation :

$\bigstar$ The dedifferentiated cells can again loose their ability to divide to form permanent cells specialised for a particular function. The phenomenon where the cells again loose their ability to divide is termed as Redifferentiation.

$\bigstar$ Example : Secondary phloem, cork, secondary xylem.