Podcast
Questions and Answers
What is the main function of the small subunit of a ribosome?
What is the main function of the small subunit of a ribosome?
- Binds fMet-tRNA in the P site
- Binds to the Shine-Dalgarno sequence (correct)
- Binds to the 5' cap of mRNA
- Has peptidyl transferase activity
Which of the following is true about the large subunit of a ribosome?
Which of the following is true about the large subunit of a ribosome?
- Scans the mRNA for the first AUG codon
- Contains the E, P, and A tRNA binding sites (correct)
- It binds to the mRNA cap structure
- It carries formylated methionine (fMet)
During the termination phase of translation, what binds to the stop codons?
During the termination phase of translation, what binds to the stop codons?
- Normal tRNAs
- fMet-tRNA
- Release factors (correct)
- Initiator tRNA
What is the function of fMet in translation initiation in bacteria?
What is the function of fMet in translation initiation in bacteria?
Which site on the large subunit of a ribosome is responsible for holding the growing polypeptide chain?
Which site on the large subunit of a ribosome is responsible for holding the growing polypeptide chain?
What does the small ribosomal subunit initially bind to during translation initiation?
What does the small ribosomal subunit initially bind to during translation initiation?
Which of the following is a characteristic of the termination stage of polypeptide synthesis?
Which of the following is a characteristic of the termination stage of polypeptide synthesis?
What is the role of release factors in the termination stage of polypeptide synthesis?
What is the role of release factors in the termination stage of polypeptide synthesis?
Which type of mutations occur more frequently: Transition or Transversion mutations?
Which type of mutations occur more frequently: Transition or Transversion mutations?
What are the possible forms that mutations can take?
What are the possible forms that mutations can take?
What is the difference between synonymous and non-synonymous mutations?
What is the difference between synonymous and non-synonymous mutations?
In the cell cycle, what is the specific relationship between DNA replication and metabolism?
In the cell cycle, what is the specific relationship between DNA replication and metabolism?
In the three levels of tRNA structure, the tertiary structure is represented by which shape?
In the three levels of tRNA structure, the tertiary structure is represented by which shape?
What is the function of transfer RNAs (tRNAs) in translation?
What is the function of transfer RNAs (tRNAs) in translation?
Which component of tRNA carries a specific amino acid and base pairs with mRNA codons?
Which component of tRNA carries a specific amino acid and base pairs with mRNA codons?
What phenomenon is described by the term 'codon wobble' in relation to tRNAs?
What phenomenon is described by the term 'codon wobble' in relation to tRNAs?
Which component of tRNA forms the secondary structure resembling a cloverleaf shape?
Which component of tRNA forms the secondary structure resembling a cloverleaf shape?
What is the role of ribosomes in translation?
What is the role of ribosomes in translation?
How many subunits make up a ribosome?
How many subunits make up a ribosome?
During the initiation phase of translation, what binds to the start codon on mRNA to signify the beginning of translation?
During the initiation phase of translation, what binds to the start codon on mRNA to signify the beginning of translation?
'A specific tRNA is covalently coupled to a specific amino acid', highlighting this statement reflects which concept?
'A specific tRNA is covalently coupled to a specific amino acid', highlighting this statement reflects which concept?
'Base pairing between mRNA codon and tRNA anticodon determines which amino acid is added to growing polypeptide.' This process primarily occurs during:
'Base pairing between mRNA codon and tRNA anticodon determines which amino acid is added to growing polypeptide.' This process primarily occurs during:
What is the role of introns in the context of translation?
What is the role of introns in the context of translation?
What is the function of the acceptor stem in tRNA molecules?
What is the function of the acceptor stem in tRNA molecules?
