Homework Answers
a) amino acyl tRNA syntase catalyses attachement of aminoacids to tRNAs
b) IF1 and IF3 effectively prevent premature formation of 70S ribosome by attaching to 30S ribosome.
c) In bacterial translation initiation factor (IF2) deliversinitial fMET-tRNA to initiation complex.
d) mRNA, which is translated into protiens.
e) tRNA recognizes the message through its anticodon.
f) 16S rRNA in the 30S subunit helps align mRNA onto 30S ribosome property.
g) P site is a binding pocket containing the peptidyl-tRNA.
h) 23S rRNA in the 50S subunit catalyzes peptide bond formation in prokaryotes.
i) A siteis a cavity in which Aminoacyl-tRNAs can easily goint and out of asthey are sampledfor the correct codon-anticodon match.
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4.(10) Match the following terms for translation in prokaryotes: All of the letters will be used...
Match the following choices to the questions below. UUU catalyzes translocation of the ribosome involved in...
Match the following choices to the questions below. UUU catalyzes translocation of the ribosome involved in transcription associated with the binding of mRNA in the ribosome binds to Shine-Dalgarno sequence involved in replication contains information in the form of anticodons catalyzes the formation of amino acid-AMP AUG UAG binds to pribnow box catalyzes formation of peptide bonds catalyzes disassembly of the translation complex associated with the binding of tRNA in the ribosome catalyzes disassembly of the transcription complex start codon...
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...
In Bacteria, translation of nascent RNA transcripts is often initiated before transcription is terminated. When this...
In Bacteria, translation of nascent RNA transcripts is often initiated before transcription is terminated. When this occurs: Select one: a. RNA is transcribed 3'=>5' and amino acids are added to the carboxy terminus of the growing polypeptide as the ribosome moves 5' => 3' along the mRNA b. RNA is transcribed 5'->3' and amino acids are added to the amino terminus of the growing polypeptide as the ribosome moves 3'=> 5' along the mRNA c. RNA is transcribed 3'=> 5'...
SЬКІЛУ sequences are only relevant in transcription d. hairpin formation at the termination site. $ interaction...
SЬКІЛУ sequences are only relevant in transcription d. hairpin formation at the termination site. $ interaction with the 16S rRNA to correctly pos AUG start codon in the A position of the ribosome; 38. In which order do the following steps occur to initiate translation in bacteria: A. F1 and 1F3 bind the 305 subunit to prevent premature binding to the 50s subunit. B. 1F2, in cooperation with GTP, delivers fMet-tRNAf to the mRNA to form the 30s initiation complex...
STEP 1 HN-1 (8 pts) The figure at the right shows the stage in translation when...
STEP 1 HN-1 (8 pts) The figure at the right shows the stage in translation when an incoming aminoacyl-tRNA has bound to the A-site on the ribosome (step 1). Using the same shapes for the tRNAs and amino acids shown in Figure A as a guide, show on Figures B and C what happens in the next two steps. Step 2 represents the peptidyl transferase reaction inherent to the large ribosomal subunit. In step 2 indicate the new peptide bond...
22. What are the roles of Dicer and RISC in the function of miRNAs? Dicer RISC...
22. What are the roles of Dicer and RISC in the function of miRNAs? Dicer RISC 23. Describe the concepts of primary, secondary, tertiary and quaternary protein structure 24. Here is a short sequence of codons. AUG CAU UGU UUU Write out the amino acids this sequence of codons encodes. Now add an insertion mutation of your choosing in the first codon and write out the new mutant sequence. What are the first four amino acids encoded by this mutant...
Please put the following steps of prokaryotic translation in order from beginning to end. The first...
Please put the following steps of prokaryotic translation in
order from beginning to end. The first step should be denoted a
"1", the second step a "2", an so on. If a step is incorrect, do
not assign it a number.
Answers below
[Choose ] Methionine is added as the final amino acid because of its association with the stop codon Initiator tRNA binds to A site mRNA binds to both ribosomal subunits simultaneously Peptidyl transferase is used to build...
Question 2 (1 point) In order to target a protein to the endomembrane system, which of...
Question 2 (1 point) In order to target a protein to the endomembrane system, which of the following is required first? O a ER bound ribosome signal peptide on the N terminus of the polypeptide chaperone protein signal peptide on the C terminus of the polypeptide O signal-recognition particles A tRNA is chemically modified so that the amino acid bound is different than the one specified by its anticodon. Which codon in the mRNA would the tRNA recognize: the one...
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...
6. All of the following statements about tRNAs are true EXCEPT: O A tRNA may use...
6. All of the following statements about tRNAs are true EXCEPT: O A tRNA may use non-conventional base-pairing to bind to the codon. O A TRNA cannot fully enter the ribosome until it is released by the elongation factor. O A tRNA brings the correct amino acid for the corresponding codon in the mRNA during translation. O A tRNA catalyzes the formation of the peptide bond between amino acids.
Match the following choices to the questions below. UUU catalyzes translocation of the ribosome involved in transcription associated with the binding of mRNA in the ribosome binds to Shine-Dalgarno sequence involved in replication contains information in the form of anticodons catalyzes the formation of amino acid-AMP AUG UAG binds to pribnow box catalyzes formation of peptide bonds catalyzes disassembly of the translation complex associated with the binding of tRNA in the ribosome catalyzes disassembly of the transcription complex start codon...
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...
In Bacteria, translation of nascent RNA transcripts is often initiated before transcription is terminated. When this occurs: Select one: a. RNA is transcribed 3'=>5' and amino acids are added to the carboxy terminus of the growing polypeptide as the ribosome moves 5' => 3' along the mRNA b. RNA is transcribed 5'->3' and amino acids are added to the amino terminus of the growing polypeptide as the ribosome moves 3'=> 5' along the mRNA c. RNA is transcribed 3'=> 5'...
SЬКІЛУ sequences are only relevant in transcription d. hairpin formation at the termination site. $ interaction with the 16S rRNA to correctly pos AUG start codon in the A position of the ribosome; 38. In which order do the following steps occur to initiate translation in bacteria: A. F1 and 1F3 bind the 305 subunit to prevent premature binding to the 50s subunit. B. 1F2, in cooperation with GTP, delivers fMet-tRNAf to the mRNA to form the 30s initiation complex...
STEP 1 HN-1 (8 pts) The figure at the right shows the stage in translation when an incoming aminoacyl-tRNA has bound to the A-site on the ribosome (step 1). Using the same shapes for the tRNAs and amino acids shown in Figure A as a guide, show on Figures B and C what happens in the next two steps. Step 2 represents the peptidyl transferase reaction inherent to the large ribosomal subunit. In step 2 indicate the new peptide bond...
22. What are the roles of Dicer and RISC in the function of miRNAs? Dicer RISC 23. Describe the concepts of primary, secondary, tertiary and quaternary protein structure 24. Here is a short sequence of codons. AUG CAU UGU UUU Write out the amino acids this sequence of codons encodes. Now add an insertion mutation of your choosing in the first codon and write out the new mutant sequence. What are the first four amino acids encoded by this mutant...
Please put the following steps of prokaryotic translation in
order from beginning to end. The first step should be denoted a
"1", the second step a "2", an so on. If a step is incorrect, do
not assign it a number.
Answers below
[Choose ] Methionine is added as the final amino acid because of its association with the stop codon Initiator tRNA binds to A site mRNA binds to both ribosomal subunits simultaneously Peptidyl transferase is used to build...
Question 2 (1 point) In order to target a protein to the endomembrane system, which of the following is required first? O a ER bound ribosome signal peptide on the N terminus of the polypeptide chaperone protein signal peptide on the C terminus of the polypeptide O signal-recognition particles A tRNA is chemically modified so that the amino acid bound is different than the one specified by its anticodon. Which codon in the mRNA would the tRNA recognize: the one...
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...
6. All of the following statements about tRNAs are true EXCEPT: O A tRNA may use non-conventional base-pairing to bind to the codon. O A TRNA cannot fully enter the ribosome until it is released by the elongation factor. O A tRNA brings the correct amino acid for the corresponding codon in the mRNA during translation. O A tRNA catalyzes the formation of the peptide bond between amino acids.
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