Biotechnology and Its Applications Question 10
10. RNA interference involves [NEET Kar. 2013]
(a) Synthesis of mRNA from DNA
(b) Synthesis of cDNA from RNA using reverse transcriptase
(c) Silencing of specific mRNA due to complementary RNA
(d) Interference of RNA in synthesis of DNA
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Answer : c
Hints & Solutions
(c) RNAi is a method of cellular defense in all eukaryotes. It is a system within living cells that helps to control the activity of specific genes. This method involves silencing of mRNA due to complementary double stranded RNA that prevents translation of target gene or mRNA (silencing). Source of dsRNA is retrovirus (having RNA genome) or transposons (mobile genetic material).
