Norin - 10 gene is discovered in

Options

A. India
B. USA
C. japan
D. France

Answer

**Step-by-Step Solution:**

1. **Understanding the Norin-10 Gene**: The Norin-10 gene is associated with a semi-dwarf variety of wheat. It is important to identify where this gene was first discovered.

2. **Identifying the Origin**: The Norin-10 gene was discovered in Japan. This variety of wheat was developed to improve certain agricultural traits.

3. **Significance of Norin-10**: The semi-dwarf nature of Norin-10 helps in reducing lodging (falling over) of the plants, which is a common problem in taller wheat varieties, especially in windy conditions.

4. **Impact on Breeding Programs**: The Norin-10 gene was utilized in breeding programs in the USA during the 1950s to enhance winter wheat varieties by improving their lodging resistance.

5. **Conclusion**: Based on the information gathered, the correct answer to the question regarding the discovery of the Norin-10 gene is Japan.

**Final Answer**: The Norin-10 gene is discovered in Japan.

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