Question

Tobacco plants resistant to nematodes have been developed by introduction of DNA that produces _____________.

• A. Both sense and anti sense RNA
• B. An antifeedent
• C. A toxic protein
• D. A particular hormone

Answer 1

Answer: (A)

Both sense and anti sense RNA

Nematode-specific gene was introduced into the tobacco plant via Agrobacterium vector. The introduced DNA produced both sense and antisense RNA which were complementary to each other and formed dsRNA, that silent the expression of m-RNA of the nematode.

So the correct answer is option A.