Imparipinnate leaf is the one where

Options

A. Leaflets are borne in pairs
B. Leaflets are small
C. Leaflets are large
D. Rachis is terminated by an odd leaflet.

Answer

**Step-by-Step Solution:**

1. **Understanding Imparipinnate Leaf:**
- An imparipinnate leaf is a type of compound leaf where the leaflets are arranged along a central axis (rachis) and there is one terminal leaflet at the end.

2. **Identifying the Characteristics:**
- In an imparipinnate leaf, the leaflets are not arranged in pairs. Instead, there is an odd number of leaflets, which means that one leaflet is unpaired at the tip.

3. **Defining the Rachis:**
- The rachis is the main axis of the compound leaf that supports the leaflets. In the case of an imparipinnate leaf, the rachis ends with a single terminal leaflet.

4. **Analyzing the Options:**
- The options provided are:
a) Leaflets are born in pairs.
b) Leaflets are small.
c) Leaflets are large.
d) Rachis is terminated by an odd leaflet.
- Among these options, option (d) is correct as it accurately describes the characteristic of an imparipinnate leaf.

5. **Conclusion:**
- Therefore, the correct answer is: "Rachis is terminated by an odd leaflet."

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