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 are seen in the mustard plant
C. In some plants, like grass banyan tree, adventitious
D. In monocotyledonous plants, the primary root is short lived

Answer

To solve the question of selecting the incorrect statement regarding flowering plants, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Analyze Option 1**:
- The statement claims that in dicots, the primary root is formed when the radical elongates directly.
- In dicots, the primary root indeed develops from the radical, which is part of the embryo. The radical elongates and forms the primary root.
- **Conclusion**: This statement is **correct**.

2. **Analyze Option 2**:
- The statement mentions that mustard plants, which are dicots, have a taproot system.
- Mustard is a dicot plant, and dicots typically exhibit a taproot system.
- **Conclusion**: This statement is **correct**.

3. **Analyze Option 3**:
- The statement claims that some plants like grass and banyan trees have absent advantageous roots.
- This is incorrect because both grass and banyan trees do have advantageous roots, which are roots that arise from parts of the plant other than the radical. These are known as adventitious roots.
- **Conclusion**: This statement is **incorrect**.

4. **Analyze Option 4**:
- The statement states that monocot plants have short-lived primary roots.
- This is true; monocots typically have primary roots that do not last long and are replaced by fibrous roots that arise from the base of the stem.
- **Conclusion**: This statement is **correct**.

### Final Answer:
Based on the analysis, the incorrect statement is **Option 3**.

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