How many true breeding pea plant varieties were selected by Mendel ?

Options

A. 14
B. 7
C. 21
D. 2

Answer

To solve the question of how many true breeding pea plant varieties were selected by Mendel, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Subject**: The question pertains to Gregor Mendel, who is known as the father of genetics due to his foundational work with pea plants.

2. **Understand True Breeding Varieties**: True breeding varieties are those that, when self-pollinated, produce offspring that are identical to themselves in terms of traits. This means they have stable inheritance patterns.

3. **Mendel's Selection**: Mendel conducted experiments using pea plants (Pisum sativum) and selected true breeding varieties for his studies.

4. **Number of Varieties**: Mendel selected a total of **14 true breeding varieties** of pea plants for his experiments. These varieties exhibited stable inheritance over multiple generations.

5. **Conclusion**: Based on the information, the answer to the question is that Mendel selected **14 true breeding pea plant varieties**.

### Final Answer:
Mendel selected **14 true breeding pea plant varieties**.

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