Question

Flavr savr is
(A) Tetraploid variety
(B) Haploid variety
(C) Somaclonal variant
(D) Transgenic variety

Answer 1

Hint: Flavr savr is that variety of the plants into which one or more genes from another species have been introduced into the genome, using the very popularly known genetic engineering processes.

Complete solution:
Flavr Savr is a genetically modified tomato. This was known to be the first commercially grown genetically engineered food. Flavr Savr tomato is more resistant to rotting. This feature is because of the introduction of an antisense gene that interferes with the assembly of the enzyme polygalacturonase. This enzyme is liable for the degradation of pectin which is present within the cell wall of the fruit. This leads to softening and makes the fruit susceptible to fungal infections. The modified fruit has an extended time period because of a reduction in the ripening rate.
Transgenic plants are those plants, whose DNA is modified using recombinant DNA technology techniques. The aim is to introduce a brand new trait to the plant which doesn't occur naturally within the species. A transgenic plant contains a gene or genes that are artificially inserted. The inserted gene sequence is understood because the transgene, it's going to come from an unrelated plant or from a totally different species. The aim of inserting a mixture of genes during a plant is to form it as useful and productive as possible. This process provides many advantages such as improving time period, higher yield, improved quality, pest resistance, tolerance to heat, cold, and drought resistance, against a spread of biotic and abiotic stresses.

So, the correct answer is ‘Transgenic variety’.

Note:
The Flavr savr tomato is known to be the first genetically engineered whole food to be sold in commerce. The history of the development of this transgenic product is discussed beginning with the results of the original antisense work and will be followed by a description of the regulatory and food safety assessment.