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10.Biotechnology and its Application
medium
$RNA$ interference involves
A
synthesis of $cDNA$ and $RNA$ using reverse transcriptase
B
silencing of specific $mRNA$ due to complementary $RNA$
C
interference of $RNA$ in synthesis of $DNA$
D
synthesis of $mRNA$ from $DNA$
(NEET-2013)
Solution
(b) : $RNA$ interference $(RNAi)$ is the phenomenon of inhibiting activity of a gene through production of both sense and antisense $RNA$. $RNAi$ takes place in all eukaryotic organisms as a method of cellular defense. This method involves a specific $mRNA$ silencing. It is due to a complementary $dsRNA$ molecule which binds to and prevents translation of the $mRNA$ causing its silencing.
Standard 12
Biology
