Join thousands of students who trust us to help them ace their exams!Watch the first video
Multiple Choice
What role does tRNA play in the process of translation?
A
tRNA forms the peptide bonds between amino acids.
B
tRNA carries amino acids to the ribosome and matches them with the codons on mRNA.
C
tRNA synthesizes mRNA from a DNA template.
D
tRNA unwinds the DNA double helix during transcription.
Verified step by step guidance
1
Understand the process of translation: Translation is the process by which the genetic code carried by mRNA is decoded to produce a specific polypeptide or protein. This occurs in the ribosome, which is the cellular machinery for protein synthesis.
Identify the role of tRNA: Transfer RNA (tRNA) is responsible for bringing the correct amino acids to the ribosome during protein synthesis. Each tRNA molecule has an anticodon that is complementary to a specific mRNA codon.
Match tRNA to mRNA: During translation, the anticodon of the tRNA pairs with the corresponding codon on the mRNA strand. This ensures that the correct amino acid is added to the growing polypeptide chain.
Explain peptide bond formation: While tRNA does not form peptide bonds itself, it plays a crucial role in positioning the amino acids so that the ribosome can catalyze the formation of peptide bonds between them, linking them into a polypeptide chain.
Clarify misconceptions: tRNA does not synthesize mRNA from a DNA template (this is the role of RNA polymerase during transcription) nor does it unwind the DNA double helix (this is the role of helicase during DNA replication).