Among the following characters, which one was not considered by Mendel in his experiment on pea

Options

A. Stem-Tall or Dwarf
B. Trichomes-Glandular or non-glandular
C. Seed-Green or Yellow
D. Pod-inflated or Constricted

Answer

To determine which character was not considered by Mendel in his experiments on pea plants, we need to analyze the options provided and compare them with the traits Mendel studied.

### Step-by-Step Solution:

1. **Identify the Characters Studied by Mendel**: Mendel conducted experiments on pea plants (Pisum sativum) and focused on seven distinct traits. These traits included:
- Plant height (tall vs. dwarf)
- Flower position (axial vs. terminal)
- Pod color (green vs. yellow)
- Pod shape (inflated vs. constricted)
- Flower color (purple vs. white)
- Seed shape (round vs. wrinkled)
- Seed color (yellow vs. green)

2. **Review the Given Options**:
- A. Stem (tall vs. dwarf)
- B. Trichomes (glandular vs. non-glandular)
- C. Seed (green vs. yellow)
- D. Pod (inflated vs. constricted)

3. **Analyze Each Option**:
- **Option A**: Stem height (tall vs. dwarf) was one of the traits Mendel studied.
- **Option B**: Trichomes (glandular vs. non-glandular) was not one of the traits Mendel studied. This trait is not included in the seven traits Mendel focused on.
- **Option C**: Seed color (green vs. yellow) was also one of the traits Mendel studied.
- **Option D**: Pod shape (inflated vs. constricted) was included in Mendel's experiments.

4. **Conclusion**: Since trichomes (glandular vs. non-glandular) was not one of the traits Mendel considered in his experiments, the correct answer is **B. Trichomes (glandular vs. non-glandular)**.

### Final Answer:
**B. Trichomes (glandular vs. non-glandular)**

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