- A rRNA
- B tRNA
- C hnRNA
- D snRNA
Correct answer: B. tRNA
Explanation: Francis Crick proposed that tRNA acts as an adaptor molecule, reading the mRNA codon and carrying the corresponding amino acid.
Concept context
DNA structure, replication, transcription, translation, the genetic code, and gene regulation (lac operon). The single most important chapter for NEET molecular biology.