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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): The microspores formed through microsporogenesis are initially held together in a cluster of four cells called microspore tetrad. Reason (R): As the anthers mature and dehydrate, the microspores dissociate from each other and develop into pollen grains. In the light of the above statements, choose the correct answer:

  1. Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. Both (A) and (R) are true but (R) is not the correct explanation of (A)
  3. is true but (R) is false
  4. is false but (R) is true

Correct answer · Option 2

Both (A) and (R) are true but (R) is not the correct explanation of (A)

Explanation

Both statements are factually correct NCERT lines, but the dissociation during maturation (R) describes the subsequent event rather than the causal explanation of why they are formed as a tetrad during meiotic cytokinesis (A).
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