Flavr Savr is an example of recombinant DNA technology being used the supprose the native genes of an organism. Which of the following statements is not true w.r.t. flavr Savr ?

Options

A. It is a transgenic tomato variety
B. It has a relatively longer shelf life
C. Polygalacturnase enzyme synthesis is suppressed
D. Some toxins are produced in the plant, hence is not fit human consumption

Answer

### Step-by-Step Solution:

1. **Understanding Flavr Savr Tomato**:
- Flavr Savr is a genetically modified tomato that was developed using recombinant DNA technology. The primary goal of this modification was to extend the shelf life of the tomato.

2. **Mechanism of Action**:
- The modification involves the suppression of the native gene known as the Pto-M6 gene, which encodes for the enzyme polygalacturonase. This enzyme is responsible for the breakdown of pectin in the cell walls of the tomato, leading to ripening and spoilage.

3. **Effects of Genetic Modification**:
- By suppressing the Pto-M6 gene, the production of polygalacturonase is reduced, which in turn slows down the ripening process. As a result, the shelf life of the Flavr Savr tomato is extended from about one week to approximately two weeks.

4. **Evaluating the Statements**:
- Now, we need to evaluate the statements provided in the question to identify which one is not true regarding the Flavr Savr tomato.
- **Option A**: "It is a transgenic tomato variety." - This statement is true.
- **Option B**: "It has relatively longer shelf life." - This statement is true.
- **Option C**: "Polygalacturonase enzyme synthesis is suppressed." - This statement is true.
- **Option D**: "Some toxins are produced in the plant hence it is not fit for human consumption." - This statement is not true.

5. **Conclusion**:
- The statement that is not true with respect to Flavr Savr is Option D, which claims that the tomato produces toxins making it unfit for human consumption.

### Final Answer:
- The statement that is not true regarding Flavr Savr is: **"Some toxins are produced in the plant hence it is not fit for human consumption."**

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