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Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS

हिन्दी

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Tapetal cells generally possess dense cytoplasm and frequently become multinucleate. Reason (R): Tapetal cells undergo repeated endomitosis and free-nuclear division without cytokinesis during their development. In the light of the above statements, choose the most appropriate answer:

  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
    is true but (R) is false
  4. D
    is false but (R) is true
View Answer & Solution

Correct answer · Option A

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

Explanation

Tapetal cells become binucleate or multinucleate because their nuclei undergo karyokinesis/endomitosis without regular cell division (cytokinesis). Thus both (A) and (R) are true, and (R) correctly explains (A).
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