Mendel chose contrasting traits in Pea

Options

A. Three
B. Two
C. One
D. Seven

Answer

**Step-by-Step Solution:**

1. **Understanding Mendel's Work**: Gregor Mendel, an Austrian monk, is known as the father of genetics. He conducted experiments on pea plants to understand the principles of heredity.

2. **Duration of Experiments**: Mendel carried out his hybridization experiments on garden peas for a period of 7 years.

3. **Selection of Pea Varieties**: He selected 14 true breeding varieties of pea plants. These varieties were chosen because they were similar except for one characteristic, which had contrasting traits.

4. **Identifying Contrasting Traits**: Mendel focused on 7 specific pairs of contrasting traits for his experiments. These traits included characteristics like stem height, flower color, and flower position.

5. **Examples of Contrasting Traits**: For instance, in stem height, the dominant trait is tall, while the recessive trait is dwarf. This pattern of dominant and recessive traits was a key part of Mendel's findings.

6. **Conclusion**: Based on Mendel's experiments, the correct answer to the question of how many contrasting traits he chose in pea plants is 7.

**Final Answer**: 7

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