11. Describe one way in which the prokaryotic ribosome ensures that the correct charged tRNA is...
11. Describe one way in which the prokaryotic ribosome ensures that the correct charged tRNA is retained with the A site of the ribosome. 3 pts
12. At the end of eukaryotic translation initiation, eIF4 proteins are still bound to the 5’ cap of the mRNA. Why isn’t this set of initiation factors released when all other initiation factors are released? 2 pts
13. Consider the GTP/GDP cycling of EF-Tu
What does EF-Tu initially bind to in its GTP-bound state? 2 pts
a. EF-TU-GTP binds to an aminoacylated tRNA
b. EF-TU-GTP binds to the small subunit.
c. EF-TU-GTP binds to EF-Ts.
d. EF-TU-GTP binds to EF-G-GTP
Homework Answers
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11. Describe one way in which the prokaryotic ribosome ensures
that the correct charged tRNA is...
6) Please describe the function of the Shine-Dalgarno sequence in prokaryotic translation initiation. (10 points) 7)...
6) Please describe the function of the Shine-Dalgarno sequence in prokaryotic translation initiation. (10 points) 7) During translation elongation in procaryotes, the interplay between EF-Tu and EF-TS regulate tRNA charging to the A site of the ribosome. Please describe in detail the sequence of events that take place during tRNAEFTU GTR ternary complex formation. Explain how the EF-Tu GDP that is discharged from the ribosome is converted to EF- Tu GTR that is the competent complex for translation elongation? What is...
* 1. Which of the following statements describes translation initiation in Eukaryotes: Initiation factors, a tRNAmet,...
* 1. Which of the following statements describes translation initiation in Eukaryotes: Initiation factors, a tRNAmet, and the ribosome's small subunit bind to the poly-A tail of mRNA. ✓ The ribosome's large subunit, tRNA, and P-site scan the mRNA for codons. ✓ The ribosome's large subunit binds to AUG codon on the mRNA. A ribosome binds to the C-terminus of an mRNA. Initiation factors, a tRNAmet, and the ribosome's small subunit bind to the 5'cap of mRNA. Initiation factors provide...
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a...
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a stop codon. A release factor binds and causes the release of the new polypeptide, along with the mRNA. The ribosome dissociates. v Acharged tRNA with a matching anticodon binds the mRNA codon in the A site. ✓ The ribosome moves exactly 3 nucleotides toward the 3* end of the mRNA. The small ribosomal subunit uses rRNA to bind to the Kozak sequence, which places...
Prokaryotic Translation Order each picture set, from the initiation of translation to the termination of translation...
Prokaryotic Translation Order each picture set, from the initiation of translation to the termination of translation T себя у ч н н н н нонно N-с-с-N-с-с-N-с-с -с-с н R. o R. o R. o \ R, O н нннннно - C-C-N - C-C-N-C-C-N-с-с R 0 R₂0 R₂0 Ro Peptide bond H H H 0 N-C-C-N-C-C-N-C-C Ý ß o R o Rö | H H H H H Hà H H ) N-C-C-N-C-C-N-C-C-N-C-C H R o Ro R₂0 RO Before it...
3. Prokaryotic and eukaryotic gene expression compared. Below is an incomplete table of prokaryotic and eukaryotic...
3. Prokaryotic and eukaryotic gene expression compared. Below is an incomplete table of prokaryotic and eukaryotic gene expression in comparison. Fill in the blank using PPT slides, notes and the textbook. Prokaryotic gene expression Eukaryotic gene expression Overview Steps Transcription and translation Yes Transcription and translation coupled? Gene structure No introns Epigenetic modification (chromosome remodeling) transcription, translation, RNA processing, protein processing Transcription in the nucleus and translation in the cytoplasm Interrupted gene with exons and introns RNAPI, II, III Which...
Which is the most inappropriate description of a ribosome? Select one: a. It consists of proteins...
Which is the most inappropriate description of a ribosome? Select one: a. It consists of proteins and rRNAs. b. It has pockets for at three tRNA bindings. c. For initiation, the 30S subunit binds to mRNA before the 50S subunit binds. d. For its translational function, ribosome needs other protein factors. e. Ribosomes carry out translation at consumption of the energy from ATP.
13. Which of these statements about elongation factors is true? (A) EF-Ts binds GTFP (C) EF-Ts...
13. Which of these statements about elongation factors is true? (A) EF-Ts binds GTFP (C) EF-Ts is a GTPase (D) EF-G doesn't bind to GTP (B) EF-G is a GTPase 14. Which of these is NOT a proofreading mechanism for translation elongation? (A) tRNA accomodation (B) Ribosome 16S rRNA (C) EF-G GTP hydrolysis (D) EF-Tu GTP hydrolysis
Question 18 Which of the following will most likely be observed if the spliceosome were to...
Question 18 Which of the following will most likely be observed if the spliceosome were to be inactivated? A decrease in the formation of 2 to 5 phosphodiester bonds. An increase in the formation of RNA lariats. An increase in the number of RNAs produced by alternative splicing. O A decrease in 7mGppp formation Question 19 Which of the following is NOT true of typical aminoacyl tRNA synthetases? They catalyze the formation of a larger molecule. They are capable of...
PLease do 19-21 Question 18 Which of the following will most likely be observed if the...
PLease do 19-21
Question 18 Which of the following will most likely be observed if the spliceosome were to be inactivated? A decrease in the formation of 2 to 5 phosphodiester bonds. An increase in the formation of RNA lariats. An increase in the number of RNAs produced by alternative splicing. O A decrease in 7mGppp formation Question 19 Which of the following is NOT true of typical aminoacyl tRNA synthetases? They catalyze the formation of a larger molecule. They...
there are multiple answers correct MS Which of the following events occur during prokaryotic translation termination?...
there are multiple answers correct
MS Which of the following events occur during prokaryotic translation termination? The small ribosomal subunit binds with a specific tRNA to the mRNA and scans for a start codon. A tRNA recognizes the stop codon and the ribosome dissociates from the mRNA A protein recognizes the stop codon and the ribosome dissociates from the mRNA. A tRNA binds a codon and the ribosome adds amino acids from each tRNA to the polypeptide chain. Codons in...
6) Please describe the function of the Shine-Dalgarno sequence in prokaryotic translation initiation. (10 points) 7) During translation elongation in procaryotes, the interplay between EF-Tu and EF-TS regulate tRNA charging to the A site of the ribosome. Please describe in detail the sequence of events that take place during tRNAEFTU GTR ternary complex formation. Explain how the EF-Tu GDP that is discharged from the ribosome is converted to EF- Tu GTR that is the competent complex for translation elongation? What is...
* 1. Which of the following statements describes translation initiation in Eukaryotes: Initiation factors, a tRNAmet, and the ribosome's small subunit bind to the poly-A tail of mRNA. ✓ The ribosome's large subunit, tRNA, and P-site scan the mRNA for codons. ✓ The ribosome's large subunit binds to AUG codon on the mRNA. A ribosome binds to the C-terminus of an mRNA. Initiation factors, a tRNAmet, and the ribosome's small subunit bind to the 5'cap of mRNA. Initiation factors provide...
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a stop codon. A release factor binds and causes the release of the new polypeptide, along with the mRNA. The ribosome dissociates. v Acharged tRNA with a matching anticodon binds the mRNA codon in the A site. ✓ The ribosome moves exactly 3 nucleotides toward the 3* end of the mRNA. The small ribosomal subunit uses rRNA to bind to the Kozak sequence, which places...
Prokaryotic Translation Order each picture set, from the initiation of translation to the termination of translation T себя у ч н н н н нонно N-с-с-N-с-с-N-с-с -с-с н R. o R. o R. o \ R, O н нннннно - C-C-N - C-C-N-C-C-N-с-с R 0 R₂0 R₂0 Ro Peptide bond H H H 0 N-C-C-N-C-C-N-C-C Ý ß o R o Rö | H H H H H Hà H H ) N-C-C-N-C-C-N-C-C-N-C-C H R o Ro R₂0 RO Before it...
3. Prokaryotic and eukaryotic gene expression compared. Below is an incomplete table of prokaryotic and eukaryotic gene expression in comparison. Fill in the blank using PPT slides, notes and the textbook. Prokaryotic gene expression Eukaryotic gene expression Overview Steps Transcription and translation Yes Transcription and translation coupled? Gene structure No introns Epigenetic modification (chromosome remodeling) transcription, translation, RNA processing, protein processing Transcription in the nucleus and translation in the cytoplasm Interrupted gene with exons and introns RNAPI, II, III Which...
13. Which of these statements about elongation factors is true? (A) EF-Ts binds GTFP (C) EF-Ts is a GTPase (D) EF-G doesn't bind to GTP (B) EF-G is a GTPase 14. Which of these is NOT a proofreading mechanism for translation elongation? (A) tRNA accomodation (B) Ribosome 16S rRNA (C) EF-G GTP hydrolysis (D) EF-Tu GTP hydrolysis
Question 18 Which of the following will most likely be observed if the spliceosome were to be inactivated? A decrease in the formation of 2 to 5 phosphodiester bonds. An increase in the formation of RNA lariats. An increase in the number of RNAs produced by alternative splicing. O A decrease in 7mGppp formation Question 19 Which of the following is NOT true of typical aminoacyl tRNA synthetases? They catalyze the formation of a larger molecule. They are capable of...
PLease do 19-21
Question 18 Which of the following will most likely be observed if the spliceosome were to be inactivated? A decrease in the formation of 2 to 5 phosphodiester bonds. An increase in the formation of RNA lariats. An increase in the number of RNAs produced by alternative splicing. O A decrease in 7mGppp formation Question 19 Which of the following is NOT true of typical aminoacyl tRNA synthetases? They catalyze the formation of a larger molecule. They...
there are multiple answers correct
MS Which of the following events occur during prokaryotic translation termination? The small ribosomal subunit binds with a specific tRNA to the mRNA and scans for a start codon. A tRNA recognizes the stop codon and the ribosome dissociates from the mRNA A protein recognizes the stop codon and the ribosome dissociates from the mRNA. A tRNA binds a codon and the ribosome adds amino acids from each tRNA to the polypeptide chain. Codons in...
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