Match List-I with List-II
| List-I | List-II |
|---|---|
| RNA type | Role/function |
| (A) mRNA | (I) Initiates transcription |
| (B) tRNA | (II) Structural and catalytic role during translation |
| (C) rRNA | (III) Provides a template |
| (D) RNA Polymerase | (IV) Reads the genetic code |
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
(A) mRNA — this matches (III) Provides a template. Messenger RNA carries the code copied from DNA; its codons are read in order to build the protein.
(B) tRNA — this matches (IV) Reads the genetic code. Transfer RNA has an anticodon that pairs with the codon on mRNA and brings the matching amino acid.
(C) rRNA — this matches (II) Structural and catalytic role during translation. Ribosomal RNA builds the ribosome, and one rRNA works as the enzyme that joins amino acids (a ribozyme).
(D) RNA Polymerase — this matches (I) Initiates transcription. It binds the promoter and starts making RNA from the DNA template.
NCERT Extract:
Types of RNA and the Process of Transcription – “In bacteria, there are three major types of RNAs: mRNA (messenger RNA), tRNA (transfer RNA), and rRNA (ribosomal RNA). All three RNAs are needed to synthesise a protein in a cell. The mRNA provides the template, tRNA brings aminoacids and reads the genetic code, and rRNAs play structural and catalytic role during translation. There is single DNA-dependent RNA polymerase that catalyses transcription of all types of RNA in bacteria. RNA polymerase binds to promoter and initiates transcription (Initiation).”