During the process of translation, the growing polypeptide chain is released from the ribosome when:Select one:a. The 7-methylguanosine cap is reachedb. A chain terminating tRNA binds to the ribosomec. The poly A tail is reachedd. A chain terminating codon is reached
Question
During the process of translation, the growing polypeptide chain is released from the ribosome when:Select one:a. The 7-methylguanosine cap is reachedb. A chain terminating tRNA binds to the ribosomec. The poly A tail is reachedd. A chain terminating codon is reached
Solution
The growing polypeptide chain is released from the ribosome during the process of translation when a chain terminating codon is reached. So, the correct answer is d. A chain terminating codon is reached.
Here's a step-by-step explanation:
- Translation begins when a ribosome attaches to an mRNA molecule.
- The ribosome reads the sequence of codons (groups of three nucleotides) in the mRNA.
- Each codon corresponds to a specific amino acid or a stop signal.
- tRNA molecules carry amino acids to the ribosome and match them to the codons on the mRNA.
- The ribosome links the amino acids together to form a polypeptide chain, which will become a protein.
- When the ribosome reaches a stop codon (a chain terminating codon), it releases the polypeptide chain. This marks the end of translation.
Similar Questions
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