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Homework Answers
5b. template independent
PAP or poly-A polymerase is a template-independent polymerase that belongs to the DNA polymerase beta (polĪ²) family of enzymes that catalyzes the addition of about 200 -250 adenine residues at the end of m RNA called poly-A tail that protects the m RNA from degradation.
The capping process replaces the triphosphate group with another structure called the "cap". The cap is added by the enzyme guanyl transferase. In the reaction, the beta phosphate of the RNA transcript displaces a pyrophosphate group at the 5' position of the GTP molecule.
6d. A or E depending on the type of amino acid
Incoming aminoacyl-tRNAs (a tRNA with an amino acid covalently attached is called an aminoacyl-tRNA) enter the ribosome at the A site. Initiator t RNA which carries methionine in eukaryotes enters P site directly. Rest of the amino acids bounced to t RNA enters through A site.
The aa-tRNA delivery step is catalyzed by the eukaryotic Elongation Factor 1 (eEF1) complex.
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5. Which process occurs in the 3' end of mRNA during...
answer all the questions 18) A mutation occurs such that a spliceosome cannot remove one of...
answer all the questions
18) A mutation occurs such that a spliceosome cannot remove one of the introns in a gene. What effect will this have on the gene? Translation will continue, but a nonfunctional protein will be made b) Translation will continue and will skip the intron sequence c) It will have no effect; the gene will be transcribed and translated into protein d) Transcription will terminate easily and the protein will not be made 19. During the process...
Which of the following correctly describes the process of Translation? I. tRNA anticodon bonds to mRNA...
Which
of the following correctly describes the process of
Translation?
I.
tRNA anticodon bonds to mRNA codon
II.
Ribosome bonds to mRNA strand
II.
Ribosome reaches a STOP codon and detaches from the mRNA
IV.
Each tRNA adds an Amino Acid to the chain as the Ribosome moves
along
the mRNA
V.
Complimentary mRNA strand is made from DNA template
OA. V, I, IV, III B. II, IV, III, I, V C. II, I, IV, III D. V, II, I,...
Multiple choice questions. Please highlight, circle answers, or make them obvious when displayed alongside explanations. (5...
Multiple choice questions. Please highlight, circle answers, or make them obvious when displayed alongside explanations. (5 pts) The antibiotic erythromycin disrupts protein synthesis by preventing ribosomal translocation (movement of the ribosome relative to the mRNA). It does not affect any other step in protein synthesis. Suppose you are doing a translation reaction in vitro and you add erythromycin just before the 3rd peptide bond is about to be made. You wait a few minutes and look at the ribosome. Circle...
30) The organelle that performs the process of translation has room for thre mRNA/ rRNA/ tRNA) molecules. Except for the molecule carrying the very first amino acid, all enter this organelle at t...
30) The organelle that performs the process of translation has room for thre mRNA/ rRNA/ tRNA) molecules. Except for the molecule carrying the very first amino acid, all enter this organelle at the site. The movement of the ribosome with respect to the mRNA is (translation/ translocation), and it occurs each time a known as new amino acid is added to the polypeptide chain, in other words, during the cycle of the ribosome. This movement is powered by the ATP/...
PLEASE ANSWER BOTH QUESTIONS CORRECTLY. THANK YOU! PLEASE ANSWER BOTH QUESTIONS CORRECTLY. THANK YOU! Which of...
PLEASE ANSWER BOTH QUESTIONS CORRECTLY. THANK YOU!
PLEASE ANSWER BOTH QUESTIONS CORRECTLY. THANK YOU!
Which of the following modification on mRNA is required for promoter escaping of eukaryotic RNAP? Select one: a. Capping b. Phosphorylation c. Splicing d. PolyA tailing Arrange the following in the proper sequence in which they occur during RNA splicing. 1. Lariat is formed 2. U2 binds to branch site 3. 3' splice site is cut Select one: a. 1, 2, 3 b. 2, 1, 3...
moose the correct alphabet (letter, noting that each and may have only ch answer can be...
moose the correct alphabet (letter, noting that each and may have only ch answer can be used more than once Answers a Eukaryotic mRNAS b.Prokaryotic mRNAs e . Transfer RNAS d. RNAs f. All RNAS e. Pre-mRNA the have a cloverleaf structure are synthesized by RNA polymerases the RNA that has the anti-codon are the template of genetic information during protein synthesis contains exons and introns is a structural component of the ribosome is the RNA that goes into the...
Please answer all questions. Oftentimes, unsaturated fatty acids are found in a fluid state at room...
Please answer all questions. Oftentimes, unsaturated fatty acids are found in a fluid state at room temperature (e.g., olive oil). This is because unsaturated fatty acids contain a large number of ___________________. a. Hydrogen bonds b. Carbon-Carbon single bonds c. Carbon-Carbon double bonds d. Sulfide bonds e. Radioactive bonds Which of the following stages of aerobic cellular respiration generates the most ATP? a. Glycolysis b. Pyruvate breakdown c. Citric Acid Cycle (aka. Krebs Cycle) d. Oxidative phosphorylation e. Calvin Cycle...
please answer all the questions right. J. TIIS IS 18 Pelresh your memory on what you...
please answer all the questions right.
J. TIIS IS 18 Pelresh your memory on what you knew well and what you ne ork more on. It also is preparation for a review of all of the practice questions from unit 3, which is due Mon ay want to work on these quizzes together, or use this quiz to guide your studying and the old question revie onday to assess your studying. D l Question 1 0.2 pts (LO 15.7) How...
O) The role of the 23S TRNA of the large ribosomal subunit of E. coli during...
O) The role of the 23S TRNA of the large ribosomal subunit of E. coli during protein synthesis is: a. aid in initiation of protein synthesis b. contributes to the process of translocation during the elongation stage of protein synthesis c. helps to form the A site within the ribosome d. actively forms a peptide bond e. none of the above P) Spontaneous mutations can be caused by: a. incorrect translation b. telomerase c. chemical mutagens d. tautomeric shifts e....
please answer all parts 106. What process helps compact the DNA in a chromosome? A) anaphase...
please answer all parts
106. What process helps compact the DNA in a chromosome? A) anaphase promoting complex B) entry into S-phase of the cell cycle C) removal of the nuclear lamina D) removal of methyl groups from DNA E) histone de-acetylation 107. What does DNA Ligase do? A) removes mismatched nucleotides B) adds complimentary bases to single stranded DNA C) joins the ends of chromosomes together D) forms a phosphodiester covalent bond between adjacent nucleotides E) chews up single...
answer all the questions
18) A mutation occurs such that a spliceosome cannot remove one of the introns in a gene. What effect will this have on the gene? Translation will continue, but a nonfunctional protein will be made b) Translation will continue and will skip the intron sequence c) It will have no effect; the gene will be transcribed and translated into protein d) Transcription will terminate easily and the protein will not be made 19. During the process...
Which
of the following correctly describes the process of
Translation?
I.
tRNA anticodon bonds to mRNA codon
II.
Ribosome bonds to mRNA strand
II.
Ribosome reaches a STOP codon and detaches from the mRNA
IV.
Each tRNA adds an Amino Acid to the chain as the Ribosome moves
along
the mRNA
V.
Complimentary mRNA strand is made from DNA template
OA. V, I, IV, III B. II, IV, III, I, V C. II, I, IV, III D. V, II, I,...
30) The organelle that performs the process of translation has room for thre mRNA/ rRNA/ tRNA) molecules. Except for the molecule carrying the very first amino acid, all enter this organelle at the site. The movement of the ribosome with respect to the mRNA is (translation/ translocation), and it occurs each time a known as new amino acid is added to the polypeptide chain, in other words, during the cycle of the ribosome. This movement is powered by the ATP/...
PLEASE ANSWER BOTH QUESTIONS CORRECTLY. THANK YOU!
PLEASE ANSWER BOTH QUESTIONS CORRECTLY. THANK YOU!
Which of the following modification on mRNA is required for promoter escaping of eukaryotic RNAP? Select one: a. Capping b. Phosphorylation c. Splicing d. PolyA tailing Arrange the following in the proper sequence in which they occur during RNA splicing. 1. Lariat is formed 2. U2 binds to branch site 3. 3' splice site is cut Select one: a. 1, 2, 3 b. 2, 1, 3...
moose the correct alphabet (letter, noting that each and may have only ch answer can be used more than once Answers a Eukaryotic mRNAS b.Prokaryotic mRNAs e . Transfer RNAS d. RNAs f. All RNAS e. Pre-mRNA the have a cloverleaf structure are synthesized by RNA polymerases the RNA that has the anti-codon are the template of genetic information during protein synthesis contains exons and introns is a structural component of the ribosome is the RNA that goes into the...
please answer all the questions right.
J. TIIS IS 18 Pelresh your memory on what you knew well and what you ne ork more on. It also is preparation for a review of all of the practice questions from unit 3, which is due Mon ay want to work on these quizzes together, or use this quiz to guide your studying and the old question revie onday to assess your studying. D l Question 1 0.2 pts (LO 15.7) How...
O) The role of the 23S TRNA of the large ribosomal subunit of E. coli during protein synthesis is: a. aid in initiation of protein synthesis b. contributes to the process of translocation during the elongation stage of protein synthesis c. helps to form the A site within the ribosome d. actively forms a peptide bond e. none of the above P) Spontaneous mutations can be caused by: a. incorrect translation b. telomerase c. chemical mutagens d. tautomeric shifts e....
please answer all parts
106. What process helps compact the DNA in a chromosome? A) anaphase promoting complex B) entry into S-phase of the cell cycle C) removal of the nuclear lamina D) removal of methyl groups from DNA E) histone de-acetylation 107. What does DNA Ligase do? A) removes mismatched nucleotides B) adds complimentary bases to single stranded DNA C) joins the ends of chromosomes together D) forms a phosphodiester covalent bond between adjacent nucleotides E) chews up single...
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