Lysine rich Maize variety is

Options

A. Protina
B. Rattan
C. Shakti
D. All the above.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for lysine-rich maize varieties. Lysine is an essential amino acid that is often deficient in cereals, including maize.

2. **Identifying Maize Varieties**: The video mentions three specific maize varieties: Proteina, Rattan, and Shakti. These varieties are known for their higher lysine content compared to regular maize.

3. **Opaque 2 Gene**: The video explains that these varieties are associated with the "opaque 2" gene. This gene is a recessive mutant allele that enhances the lysine and tryptophan content in maize grains.

4. **Genetic Basis**: The opaque 2 gene codes for a leucine zipper transcription factor. This factor plays a crucial role in regulating the expression of proteins that determine the amino acid balance in the maize grain.

5. **Conclusion**: Since all three varieties (Proteina, Rattan, and Shakti) are identified as lysine-rich due to the presence of the opaque 2 gene, the correct answer to the question is "All the above."

**Final Answer**: The lysine-rich maize varieties are Proteina, Rattan, and Shakti (All the above).

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