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ZoologyNEET 2025Flower structure, microsporogenesis and megasporogenesis

Sexual Reproduction in Flowering Plants

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): The presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells.

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

  1. A.Both A and R are true and R is the correct explanation of A✓
  2. B.Both A and R are true but R is NOT the correct explanation of A
  3. C.A is true but R is false
  4. D.A is false but R is true

Solution

Tapetal cells are multinucleate with dense cytoplasm (A true), and this polyploid, multinucleate state supports their role of nourishing the developing microspores (R true, and it explains A).

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