Flavr Savr is the transgenic variety of

Options

A. Production of a portein of interset
B. Production of a protein that produces desired phenotype
C. modifiying an existing biosynthetic parthway to get a new end product
D. Prevention of the expression of an existing native gene

Answer

**Step-by-Step Solution:**

1. **Identify the Transgenic Variety**: The question asks for the transgenic variety known as Flavr Savr.

2. **Understand the Crop**: Flavr Savr is specifically a genetically engineered variety of tomato.

3. **Genetic Engineering Process**: The Flavr Savr tomato was developed to delay the ripening process. This was achieved by inhibiting a specific gene.

4. **Targeted Gene**: The gene that was inhibited is responsible for producing an enzyme called polygalacturonase (PG), which is associated with the softening of the tomato during ripening.

5. **Mechanism of Action**: The method used to inhibit this gene was through the use of antisense RNA technology, which regulates the expression of the polygalacturonase enzyme.

6. **Desired Outcome**: By inhibiting the gene for polygalacturonase, the Flavr Savr tomato maintains its firmness longer than non-transgenic tomatoes, thus producing the desired phenotype of a firmer tomato.

7. **Conclusion**: Therefore, Flavr Savr is a transgenic variety of tomato that was engineered to produce a desired phenotype by modifying the expression of a gene responsible for fruit softening.

**Final Answer**: Flavr Savr is the transgenic variety of tomato.

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