Which is not a dominant trait studies by Mendel ?

Options

A. Stem height Tall
B. Flower colour Violet
C. Flower position Axial
D. Pod shape constricted

Answer

To determine which trait studied by Mendel is not a dominant trait, we need to analyze the traits provided in the question. Mendel's experiments focused on several traits in garden peas, and he identified dominant and recessive traits for each.

### Step-by-Step Solution:

1. **Identify the Traits**: The traits given in the question are:
- Stem height (Tall)
- Flower color (Violet)
- Flower position (Axial)
- Pod shape (Constricted)

2. **Analyze Stem Height**:
- In Mendel's experiments, the tall stem height is a dominant trait. The recessive trait for stem height is dwarf.
- **Conclusion**: Tall is a dominant trait.

3. **Analyze Flower Color**:
- The violet flower color is also a dominant trait in Mendel's experiments. The recessive trait for flower color is white.
- **Conclusion**: Violet is a dominant trait.

4. **Analyze Flower Position**:
- The axial flower position is a dominant trait. The recessive trait for flower position is terminal.
- **Conclusion**: Axial is a dominant trait.

5. **Analyze Pod Shape**:
- The constricted pod shape is a recessive trait in Mendel's studies. The dominant trait for pod shape is inflated.
- **Conclusion**: Constricted is not a dominant trait.

6. **Final Answer**: Based on the analysis, the trait that is not a dominant trait studied by Mendel is **Pod shape (Constricted)**.