NEETBotanyMorphology of Flowering Plants
Match List-I with List-II regarding aestivation in flowers. List-I (Type of Aestivation) List-II (Example) (A) Valvate (I) Bean (B) Twisted (II) Gulmohur (C) Imbricate (III) Cotton (D) Vexillary (IV) Calotropis Choose the correct answer from the options given below:
Options
- A(A)-(IV), (B)-(III), (C)-(II), (D)-(I)
- B(A)-(IV), (B)-(II), (C)-(III), (D)-(I)
- C(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
- D(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
Correct answer
A. (A)-(IV), (B)-(III), (C)-(II), (D)-(I)
Step-by-step solution
According to NCERT, in valvate aestivation, sepals or petals just touch one another at the margin without overlapping (e.g., Calotropis). In twisted aestivation, one margin of the appendage overlaps that of the next one (e.g., cotton). In imbricate aestivation, margins overlap but not in any particular direction (e.g., gulmohur). In vexillary aestivation, the largest petal overlaps the two lateral petals, which in turn overlap the two smallest anterior petals (e.g., bean). Therefore, the correct match is (A)-(IV),