What role does tRNA play in the translation process?
tRNA Carrie’s amino acids to the ribosome and helps form proteins.
tRNA holds the “stop” codon to alert ribosomes to end protein production.
tRNA bonds the amino acids together to then form proteins.
tRNA converts DNA into mRNA.
The correct answer is: tRNA carries amino acids to the ribosome and helps form proteins.
The correct role of tRNA in the translation process is that tRNA carries amino acids to the ribosome and helps form proteins.
The correct answer is: tRNA carries amino acids to the ribosome and helps form proteins.
To arrive at this answer, we can break down each option and eliminate the incorrect ones.
Option 1: tRNA carries amino acids to the ribosome and helps form proteins. This is correct. During translation, tRNA molecules bring specific amino acids to the ribosome in the order dictated by the mRNA sequence. These amino acids are then linked together to form a polypeptide chain, which ultimately becomes a protein.
Option 2: tRNA holds the "stop" codon to alert ribosomes to end protein production. This is incorrect. The "stop" codon is recognized by a class of molecules called release factors, not tRNA. Release factors bind to the ribosome when a "stop" codon is reached, signaling the termination of protein synthesis.
Option 3: tRNA bonds the amino acids together to then form proteins. This is not entirely accurate. While tRNA does carry amino acids to the ribosome, it does not directly bond the amino acids together. Instead, it transfers the amino acids to the growing polypeptide chain on the ribosome, where the amino acids are covalently bonded together by the ribosome itself.
Option 4: tRNA converts DNA into mRNA. This is incorrect. The conversion of DNA into mRNA is performed by the process of transcription, which occurs in the nucleus. tRNA is not involved in this process; its main role is in translation, where it delivers the amino acids to the ribosome.
In conclusion, tRNA plays a crucial role in the translation process by carrying amino acids to the ribosome, where they are incorporated into a growing polypeptide chain, leading to protein formation.