Which one of the following trait of pea plant studied by Mendel is dominant?

Options

A. Axial flower position
B. Green seed colour
C. Wrinkled seed colour
D. Yellow pod colour

Answer

To determine which trait of the pea plant studied by Mendel is dominant, we can analyze the traits he observed and their dominant and recessive characteristics. Here’s a step-by-step solution:

### Step-by-Step Solution:

1. **Understanding Dominant and Recessive Traits**:
- Dominant traits are expressed in both homozygous (two identical alleles) and heterozygous (one dominant and one recessive allele) conditions.
- Recessive traits are expressed only in homozygous conditions.

2. **Identifying Traits Studied by Mendel**:
- Mendel studied seven traits in pea plants, which include:
- Seed shape (Round vs. Wrinkled)
- Seed color (Yellow vs. Green)
- Pod shape (Inflated vs. Constricted)
- Pod color (Green vs. Yellow)
- Flower color (Purple vs. White)
- Plant height (Tall vs. Dwarf)
- Flower position (Axial vs. Terminal)

3. **Determining the Dominant Traits**:
- For each trait, Mendel identified which form was dominant:
- **Seed Shape**: Round (dominant) over Wrinkled (recessive)
- **Seed Color**: Yellow (dominant) over Green (recessive)
- **Pod Shape**: Inflated (dominant) over Constricted (recessive)
- **Pod Color**: Green (dominant) over Yellow (recessive)
- **Flower Color**: Purple (dominant) over White (recessive)
- **Plant Height**: Tall (dominant) over Dwarf (recessive)
- **Flower Position**: Axial (dominant) over Terminal (recessive)

4. **Analyzing the Given Options**:
- The question provides multiple traits, and we need to identify which one is dominant from the options given.

5. **Conclusion**:
- Based on Mendel's findings, the dominant traits include Round seed shape, Yellow seed color, Inflated pod shape, Green pod color, Purple flower color, Tall plant height, and Axial flower position.
- If the option provided is "Axial flower position," then it is indeed a dominant trait.

### Final Answer:
The dominant trait of pea plant studied by Mendel is **Axial flower position**.