During the process of translation, __________ matches an mRNA codon with the proper amino acid.

• A. tRNA
• B. RNA polymerase
• C. DNA polymerase
• D. rRNA

Answer: (A)

Verified step by step guidance

1. Understand the process of translation: Translation is the process by which the genetic code carried by mRNA is used to synthesize proteins. It occurs in the ribosome and involves matching codons on the mRNA with the appropriate amino acids.
2. Identify the role of tRNA: Transfer RNA (tRNA) is responsible for bringing the correct amino acid to the ribosome during translation. Each tRNA molecule has an anticodon that pairs with a specific mRNA codon.
3. Clarify the role of RNA polymerase: RNA polymerase is involved in transcription, not translation. It synthesizes mRNA from a DNA template during the first step of gene expression.
4. Clarify the role of DNA polymerase: DNA polymerase is involved in DNA replication, not translation. It synthesizes new DNA strands during cell division.
5. Clarify the role of rRNA: Ribosomal RNA (rRNA) is a structural component of ribosomes and helps facilitate the process of translation, but it does not directly match codons with amino acids like tRNA does.