Question

Match the types of placentation (Column I) with their correct plant examples (Column II). \[ \begin{array}{|c|c|} \hline \textbf{Column I} & \textbf{Column II} \\ \hline A.\ \text{Marginal} & i.\ \text{Argemone, Mustard} \\ B.\ \text{Axile} & ii.\ \text{Dianthus, Primrose} \\ C.\ \text{Parietal} & iii.\ \text{Sunflower, Marigold} \\ D.\ \text{Free Central} & iv.\ \text{Pea} \\ & v.\ \text{Tomato, Lemon, China rose} \\ \hline \end{array} \]

• A. A-IV, B-V, C-I, D-II
• B. A-I, B-IV, C-III, D-II
• C. A-II, B-III, C-I, D-IV
• D. A-III, B-IV, C-II, D-I

Hint:

Important placentation examples: \[ \boxed{ \begin{aligned} \text{Marginal} &\rightarrow \text{Pea}\\ \text{Axile} &\rightarrow \text{Tomato, Lemon, China rose}\\ \text{Parietal} &\rightarrow \text{Mustard, Argemone}\\ \text{Free Central} &\rightarrow \text{Dianthus, Primrose}\\ \text{Basal} &\rightarrow \text{Sunflower, Marigold} \end{aligned} } \] These examples are frequently asked in NEET and other biology examinations.

Answer 1

The Correct Option is A

Placentation describes how ovules attach inside the ovary: marginal placentation is seen in pea, axile in tomato and lemon, parietal in mustard and Argemone, basal in sunflower, and free central in Dianthus and primrose. The type depends on the position of the placenta and the arrangement of carpels in the ovary.