What function does tRNA serve during protein synthesis?

What function does tRNA serve during protein synthesis?

• A. To help in the transcription process in the nucleus.
• B. To transport amino acids to the ribosome.
• C. To splice mRNA before translation.
• D. To replicate DNA.

Answer: (B)

tRNA, or transfer RNA, plays a vital role in the process of protein synthesis by transporting amino acids to the ribosome, where proteins are synthesized. During translation, tRNA molecules decode the information carried by messenger RNA (mRNA) and ensure that the correct amino acids are added in the proper sequence to form a polypeptide chain. Each tRNA molecule is specific to one type of amino acid and has an anticodon region that pairs with the corresponding codon on the mRNA strand. This accurate coupling facilitates the assembly of amino acids into a protein, following the genetic instructions. The other functions mentioned do not pertain to tRNA. Transcription, which involves the synthesis of RNA from a DNA template, is carried out by RNA polymerase, not tRNA. Splicing of mRNA, which is the process of removing introns and connecting exons, is mediated by a complex of proteins and RNA called the spliceosome. Lastly, DNA replication is facilitated by different enzymes, such as DNA polymerase. Thus, the primary and essential role of tRNA in protein synthesis is indeed to transport amino acids to the ribosome.

tRNA, or transfer RNA, plays a vital role in the process of protein synthesis by transporting amino acids to the ribosome, where proteins are synthesized. During translation, tRNA molecules decode the information carried by messenger RNA (mRNA) and ensure that the correct amino acids are added in the proper sequence to form a polypeptide chain. Each tRNA molecule is specific to one type of amino acid and has an anticodon region that pairs with the corresponding codon on the mRNA strand. This accurate coupling facilitates the assembly of amino acids into a protein, following the genetic instructions.

The other functions mentioned do not pertain to tRNA. Transcription, which involves the synthesis of RNA from a DNA template, is carried out by RNA polymerase, not tRNA. Splicing of mRNA, which is the process of removing introns and connecting exons, is mediated by a complex of proteins and RNA called the spliceosome. Lastly, DNA replication is facilitated by different enzymes, such as DNA polymerase. Thus, the primary and essential role of tRNA in protein synthesis is indeed to transport amino acids to the ribosome.