CBSE · Class 12 · Biology · Biotechnology and its ApplicationsWhat is RNA interference (RNAi) and in which type of organisms does this mechanism naturally occur?
Step-by-Step Solution
RNA interference is a biological process of gene silencing triggered by double-stranded RNA molecules, which prevent the translation of specific messenger RNAs. This mechanism naturally occurs in all eukaryotic organisms as a method of cellular defense against viral infections and transposons. In biotechnology, scientists harness this natural defense pathway to silence specific genes in pests or pathogens, such as protecting tobacco plants from nematodes.
💡 Study Guide: This question tests core syllabus concepts from Biotechnology and its Applications. For formulas, key summaries, and mock exam reference guides, read the full Biotechnology and its Applications Revision Notes.