Select an incorrect statement.

Options

A. In majority of the dicotyledonous plants, the direct elongation of the radical leads to the formation of primary root.
B. Tap root system is seen in the mustard plant.
C. In some plants, like grass, banyan tree, adventitious roots are not found.
D. In monocotyledonous plants, the primary root is short lived.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks us to select an incorrect statement regarding the morphology of flowering plants, specifically focusing on root systems.

2. **Analyzing the Options**:
- **Option 1**: "In majority of dicotyledonous plants, the direct elongation of the radical leads to the formation of primary root."
- This statement is **correct**. In dicots, the radical (embryonic root) indeed elongates to form the primary root.

- **Option 2**: "Taproot system is seen in the mustard plant."
- This statement is also **correct**. Mustard is a dicot and has a taproot system where the primary root grows deeper into the soil.

- **Option 3**: "In some plants like grass, banyan tree, advantageous roots are not found."
- This statement is **incorrect**. Both grass and banyan trees do have adventitious roots. Adventitious roots arise from parts of the plant other than the root, such as stems or leaves.

- **Option 4**: "In monocotyledonous plants, the primary root is short-lived."
- This statement is **correct**. In monocots, the primary root is often short-lived and is replaced by a fibrous root system.

3. **Identifying the Incorrect Statement**: Based on the analysis, the incorrect statement is **Option 3**, which claims that advantageous roots are not found in grass and banyan trees.

4. **Conclusion**: The correct answer to the question is **Option 3**.

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