Match List-I with List-II.
|
List-I (Aestivation) |
List-II (Example) |
||
|
(A) |
Valvate |
(I) |
Cassia |
|
(B) |
Imbricate |
(II) |
Calotropis |
|
(C) |
Twisted |
(III) |
Bean |
|
(D) |
Vexillary |
(IV) |
Cotton |
Choose the correct answer from the options given below:
A-II, B-I, C-IV, D-III
— Concept: This question tests your knowledge of aestivation , which is the mode of arrangement of sepals or petals in a…Concept: This question tests your knowledge of aestivation, which is the mode of arrangement of sepals or petals in a floral bud with respect to the other members of the same whorl.
Why (D) is correct:
- (A) Valvate: In valvate aestivation, the sepals or petals just touch one another at the margin without overlapping. This is characteristic of Calotropis (II).
- (B) Imbricate: In imbricate aestivation, the margins of sepals or petals overlap one another, but not in any particular direction. This is seen in Cassia (I).
- (C) Twisted: In twisted aestivation, one margin of the appendage overlaps the next one, and so on, in a regular manner. This is typical of cotton (IV).
- (D) Vexillary: In vexillary aestivation (also known as papilionaceous), the largest petal (standard) overlaps the two lateral petals (wings), which in turn overlap the two smallest anterior petals (keel). This is characteristic of pea and bean (III) flowers.
Why other options are wrong: The other options incorrectly match the types of aestivation with their respective examples.
NEET Tip: Remember the common examples for each type of aestivation as they are frequently asked. A good way to remember is: Valvate - Calotropis (VC), Twisted - Cotton/China rose/Lady's finger (TCC), Imbricate - Cassia/Gulmohar (ICG), Vexillary - Pea/Bean (VPB).
Correct Answer: (D)
A-II, B-I, C-IV, D-III