NEET 2023 Phase 2 · BiologyAestivationPrevious Year Question
In Calotropis, aestivation is : (NEET 2023 (Phase 2))
Answer: (C) Valvate. Aestivation is valvate when the sepals or petals of a whorl merely touch at their margins without overlapping.
- A.Imbricate
- B.Twisted
- C.Valvate✓
- D.Vexillary
Correct Answer
(C) Valvate
Solution & Explanation
Aestivation is valvate when the sepals or petals of a whorl merely touch at their margins without overlapping. NCERT gives Calotropis as the standard example of valvate aestivation, so the answer is (3) Valvate. NCERT Reference: Ch 5, p.64, lines 3-5 — "When sepals or petals in a whorl just touch one another at the margin, without overlapping, as in Calotropis, it is said to be valvate"
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