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  • Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).

Q.100) Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.
Reason (R): Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells.

In light of the above statements, choose the most appropriate answer from the options given below:

A) A is false but R is true

B) Both A and R are true and R is the correct explanation of A

C) Both A and R are true but R is NOT the correct explanation of A

D)A is true but R is false

Answers (1)

best_answer
  • Assertion is true: Tapetal cells are known for their dense cytoplasm and are often multinucleate. This is a characteristic feature of these nutritive cells in the anther.
     
  • Reason is also true and correctly explains the assertion: The multinucleate condition enhances the metabolic activity of tapetal cells, enabling them to effectively nourish the developing microspore mother cells and later the pollen grains.

Hence, the correct answer is Option (2).

Posted by

Parbin Huda Baruah

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