Write about Flavr-Savr variety of Tomato.

Explanation

Flavr-Savr variety of Tomato. This variety presents an example, where expression of a native tomato gene has been blocked. Fruit softening is promoted by the enzyme polygalacturonase which degrades pectina Production of this enzyme was blocked in the transgenic variety .Flavr. Savr.. Therefore, fruits of this variety remain fresh and retain their flavour much longer than the fruits of normal tomato variety. Flavr-Savr variety can be ripen by ethylene application.