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Cell Division and Functions

If a meristem...

Question

If a meristematic cell is placed in a medium containing radioactive thymidine, radioactivity will be first observed in

A

Euchromatin

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B

Heterochromatin

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C

Both A and B

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D

None of the above

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Solution

The correct option is D Both A and B
If a meristematic cell is placed in a medium containing radioactive thymidine, radioactivity will be first observed in both euchromatin and heterochromatin. In meristematic cell, both euchromatin (less tightly coiled) and heterochromatin (tightly coiled) divides simultaneously.
Thus, the correct answer is 'Both A and B.'

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