Question

Which one of the following is a correct statement?

• A. "Bt" in "Bt-cotton" indicates that it is a genetically modified organism produced through biotechnology.
• B. Somatic hybridization involves fusion of two complete plant cells without cell walls carrying desired genes.
• C. The transgenic Brassica napus seeds are used for production of antibiotics.
• D. "FlavrSavr" variety of tomato has enhanced the production of ethylene which improves its taste.

Answer 1

Answer: (B)

Bt in Bt cotton stands for Bacillus thuringienesis and is a pest-resistant transgenic plant. The transgenic Brassica napus seeds are a source of hirudin which is used as an anti-blood coagulating substance. Flavr savr tomato is a transgenic plant in which the shelf-life of tomato is increased by inhibiting the production of fruit ripening hormone polygalacturonase using the mRNA silencing technique. Somatic hybridization is a cull fusion technique involving the fusion of two complete plant cells carrying desired genes.