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

Concept: Placentation is the arrangement of ovules inside the ovary. Different types of placentation are associated with characteristic plant examples. \[ \boxed{ \begin{aligned} \text{Marginal} &\rightarrow \text{Pea}\\ \text{Axile} &\rightarrow \text{Tomato, Lemon, China rose}\\ \text{Parietal} &\rightarrow \text{Mustard, Argemone}\\ \text{Free Central} &\rightarrow \text{Dianthus, Primrose} \end{aligned} } \]

Step 1: Identify examples of marginal placentation.
Marginal placentation occurs in \[ \boxed{\text{Pea}.} \] Hence, \[ A \rightarrow iv. \]

Step 2: Identify examples of axile placentation.
Axile placentation is found in \[ \boxed{\text{Tomato, Lemon and China rose}.} \] Therefore, \[ B \rightarrow v. \]

Step 3: Identify examples of parietal and free central placentation.
Parietal placentation occurs in \[ \boxed{\text{Mustard and Argemone}.} \] Hence, \[ C \rightarrow i. \] Free central placentation occurs in \[ \boxed{\text{Dianthus and Primrose}.} \] Thus, \[ D \rightarrow ii. \]

Step 4: Select the correct matching.
The complete matching is \[ \boxed{ A-IV,\; B-V,\; C-I,\; D-II. } \] Therefore, \[ \boxed{\textbf{Option (A)}} \] is the correct answer.