Kaplan Nursing Entrance Practice Exam 2025 – The All-in-One Guide to Exam Success!

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What is the role of tRNA in protein synthesis?

It transcribes DNA into RNA

It carries amino acids to the ribosome

The role of tRNA, or transfer RNA, in protein synthesis is to carry amino acids to the ribosome, where they are assembled into proteins. Each tRNA molecule is specific to one particular amino acid and has an anticodon that pairs with the corresponding codon on the mRNA strand during translation. This ensures that the correct amino acids are added in the proper sequence, facilitating the formation of a polypeptide chain, which eventually folds into a functional protein.

While other molecules and structures are involved in protein synthesis, such as mRNA and ribosomal RNA, the unique function of tRNA is vital in transporting and delivering the building blocks (amino acids) necessary for protein creation. The specificity of tRNA for its respective amino acid ensures that proteins are synthesized correctly, following the genetic instructions provided by the mRNA.

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It catalyzes protein folding

It forms part of the ribosome structure

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