Question

Which of the following types of RNA is mismatched with its function?

• A. mRNA molecules carry information from the DNA to the ribosome.
• B. rRNA forms the two subunits of the ribosomes needed for protein synthesis.
• C. tRNA molecules carry specific nucleotides to the mRNA and ribosomes during protein synthesis.
• D. RNAi regulates gene expression during mRNA transcription.

Answer 1

Answer: (C)

tRNA molecules carry specific nucleotides to the mRNA and ribosomes during protein synthesis.

The mRNA encodes for a protein as contiguous codons in a series each of which is recognised by a particular tRNA. One end of the tRNA matches the genetic code in a three - nucleotide sequence called the anticodon. The anticodon base pairs with a codon in mRNA during protein biosynthesis and picks up specific amino acid from the cytoplasm to ribosome during protein synthesis. Thus, the correct answer is option C.