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Question

A secondary meristematic tissue can develop due to the resumption of power of division in

A
parenchyma and sclerenchyma
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B
parenchyma and collenchyma
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C
collenchyma and sclerenchyma
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D
parenchyma, collenchyma and sclerenchyma
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Solution

The correct option is B parenchyma and collenchyma
Simple permanent tissues such as parenchyma and collenchyma can gain the ability to divide by undergoing a phenomenon called dedifferentiation and become meristematic once again. This is possible because both parenchyma and collenchyma are simple, homogenous and living (nucleated).
Sclerenchyma is a simple dead mechanical tissue. So, it cannot become meristematic again.

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