OnlineCBT
Biology · SEXUAL REPRODUCTION IN FLOWERING PLANTS
हिन्दीGiven 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:
Correct answer · Option 1
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).
