NEETBotanyMorphology of Flowering Plants
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Flowers of Cassia exhibit imbricate aestivation. Reason (R): In Cassia, one margin of the petal overlaps that of the next one in a regular, particular direction. In the light of the above statements, choose the most appropriate answer from the options given below:
Options
- ABoth (A) and (R) are correct and (R) is the correct explanation of (A)
- BBoth (A) and (R) are correct but (R) is not the correct explanation of (A)
- C(A) is correct but (R) is not correct
- D(A) is not correct but (R) is correct
Correct answer
C. (A) is correct but (R) is not correct
Step-by-step solution
Assertion (A) is correct because plants like Cassia and gulmohur exhibit imbricate aestivation. Reason (R) is incorrect because imbricate aestivation is defined as the condition where the margins of sepals or petals overlap one another but not in any particular direction. The condition described in the Reason, where one margin overlaps the next in a regular direction, is called twisted aestivation (e.g., China rose, cotton). Answer: (A) is correct but (R) is not correct