9. In "flavr savr" tomato, expression of a native tomato gene has been blocked to:-
1. Prevent degradation of cellulose in cell wall
2. Cause degradation of cellulose in cell wall
3. Prevent degradation of pectin in cell wall
4. Cause degradation of pectin in cell wall
Dear Student,
The correct answer is option (3) prevent degradation of pectin in the cell wall.
In 'flavr savr' tomato, the gene responsible for coding polygalacturonase enzyme was blocked. This enzyme causes degradation of pectin in the cell wall and makes the tomato soft due to which it becomes more susceptible to fungal infections. So by blocking enzyme polygalacturonase, the degradation of pectin is prevented and thereby increases the shelf life of tomato and also become resistant to infections.
Regards
The correct answer is option (3) prevent degradation of pectin in the cell wall.
In 'flavr savr' tomato, the gene responsible for coding polygalacturonase enzyme was blocked. This enzyme causes degradation of pectin in the cell wall and makes the tomato soft due to which it becomes more susceptible to fungal infections. So by blocking enzyme polygalacturonase, the degradation of pectin is prevented and thereby increases the shelf life of tomato and also become resistant to infections.
Regards