Question

(iv) Why could parasite not survive in a transgenic tobacco plant?

Hint:

RNA interference effectively controls parasitic infections in transgenic crops.

Answer 1

Transgenic tobacco plants produce double-stranded RNA (dsRNA) that targets essential genes in nematodes. Key Mechanisms: \begin{itemize} \item RNA Interference (RNAi): The dsRNA produced by the plant is absorbed by the nematode, where it triggers RNAi, silencing critical genes required for survival and reproduction. \item Gene Silencing: Without the expression of vital genes, the nematode cannot perform necessary cellular processes, leading to its death. \item Eco-friendly Approach: Unlike chemical pesticides, this method is specific to nematodes, leaving beneficial soil organisms unharmed. \end{itemize} Advantages: \begin{itemize} \item Protects crops effectively. \item Reduces reliance on chemical pesticides. \item Promotes sustainable agriculture. \end{itemize} % Quick tip