Podcast
Questions and Answers
What is the main role of a bacterial promoter in transcription initiation?
What is the main role of a bacterial promoter in transcription initiation?
- Help RNA polymerase recognize the start of genes (correct)
- Act as a site for translation initiation
- Facilitate splicing of pre-mRNA molecules
- Bind to tRNA molecules during transcription
Which component of the bacterial RNA polymerase holoenzyme is responsible for recognizing the start of genes?
Which component of the bacterial RNA polymerase holoenzyme is responsible for recognizing the start of genes?
- Sigma factor (correct)
- RNA polymerase
- Core enzyme
- Rho factor
During which phase of transcription does the RNA polymerase unwind the DNA and form a temporary RNA:DNA hybrid?
During which phase of transcription does the RNA polymerase unwind the DNA and form a temporary RNA:DNA hybrid?
- Termination
- Processing
- Initiation
- Elongation (correct)
What is the function of a terminator in bacterial transcription?
What is the function of a terminator in bacterial transcription?
How does factor-independent termination of transcription differ from rho-dependent termination in bacteria?
How does factor-independent termination of transcription differ from rho-dependent termination in bacteria?
What is the significance of polycistronic mRNA often found in bacteria?
What is the significance of polycistronic mRNA often found in bacteria?
What is the role of a bacterial promoter?
What is the role of a bacterial promoter?
Which enzyme is responsible for termination of transcription in bacteria?
Which enzyme is responsible for termination of transcription in bacteria?
During transcription in bacteria, what is the function of a sigma factor?
During transcription in bacteria, what is the function of a sigma factor?
What happens during the elongation phase of bacterial transcription?
What happens during the elongation phase of bacterial transcription?
What event characterizes the termination phase of bacterial transcription?
What event characterizes the termination phase of bacterial transcription?
Which enzyme helps unwind the DNA double helix during transcription initiation in bacteria?
Which enzyme helps unwind the DNA double helix during transcription initiation in bacteria?
What is the role of the Shine-Dalgarno sequence in bacterial translation initiation?
What is the role of the Shine-Dalgarno sequence in bacterial translation initiation?
Which molecule catalyzes the formation of peptide bonds during bacterial translation?
Which molecule catalyzes the formation of peptide bonds during bacterial translation?
During translation elongation, what occurs at the A site of the bacterial ribosome?
During translation elongation, what occurs at the A site of the bacterial ribosome?
Which factor is required for the termination of protein synthesis in prokaryotes?
Which factor is required for the termination of protein synthesis in prokaryotes?
What is the function of the N-formylmethionine-tRNA in bacteria during translation initiation?
What is the function of the N-formylmethionine-tRNA in bacteria during translation initiation?
Which site on the bacterial ribosome binds the initiator tRNA or tRNA attached to the growing polypeptide?
Which site on the bacterial ribosome binds the initiator tRNA or tRNA attached to the growing polypeptide?
What is responsible for catalyzing peptide bond formation during translation in bacteria?
What is responsible for catalyzing peptide bond formation during translation in bacteria?
Which component of the ribosome moves from the A site to the P site during translation elongation?
Which component of the ribosome moves from the A site to the P site during translation elongation?
What is the significance of GTP hydrolysis during translation?
What is the significance of GTP hydrolysis during translation?
What occurs when release factors recognize a stop codon during termination of protein synthesis?
What occurs when release factors recognize a stop codon during termination of protein synthesis?
