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  4. The RNAi process, found only in eukaryotes, is initiated by:

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Q. The RNAi process, found only in eukaryotes, is initiated by:

NTA AbhyasNTA Abhyas 2020Biotechnology and its Applications

Solution:

RNAi takes place in all eukaryotic organisms as a method of cellular defense. This method involves the silencing of a specific mRNA due to a complementary dsRNA molecule that binds to and prevents translation of the mRNA (silencing). The source of this complementary RNA could be from an infection by viruses having RNA genomes or mobile genetic elements (transposons) that replicate via an RNA intermediate.