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Question
Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below:
Options
Both statement I and statement II are correct.
Both statement I and statement II are incorrect.
Statement I is correct but statement II is incorrect.
Statement I is incorrect but statement II is correct.
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Solution
Statement I is incorrect but statement II is correct.
Explanation:
The statement that transfer RNAs and ribosomal RNAs do not interact with mRNA is incorrect because tRNA directly interacts with mRNA during translation by matching anticodons with mRNA codons. The ribosome that binds mRNA also contains rRNA.
All eukaryotic creatures use RNA interference (RNAi) as a cellular defence mechanism. RNAi is a biological process in eukaryotes in which short RNAs (siRNA, miRNA) silence specific mRNA molecules, thereby controlling gene expression and protecting against viral genomes.
