Homework Answers
Question 45: All of the above.
Genes can be regulated by transcriptional repressor/activator proteins, SAM binding to a riboswitch mRNA, and alterations in the mRNA conformations by SAM during transcription.
Transcriptional repressor/activator proteins regulate genes by binding to operator/enhancer sequences, respectively.
SAM regulates genes via methylation.
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45. Which is the factor(s) involved in the regulation of gene activity? Select one: O a....
The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the...
The ____ ring is built onto ribose-5-phosphate of PRPP for its de-novo nucleotide biosynthesis, while the ring structure of the ______ bases are synthesized separately and then coupled to ribose-5-phosphate via the C-N glycosidic bond. Select one: a. inosine : adenine b. inosine : uracil c. uracil : inosine d. uracil : adenine e. None of these
Which is the factor(s) involved in the regulation of gene activity? Select one: a. Transcriptional repressor/activator...
Which is the factor(s) involved in the regulation of gene activity? Select one: a. Transcriptional repressor/activator proteins, which bind to the operator/enhancer sequence regions. b. SAM binding to a riboswitch mRNA. c. Alterations in mRNA conformations by SAM during the transcription. d. All of these. e. None of these.
Which correctly describes the functional significance of the RNA structures? Select one: a. Local base-parings are...
Which correctly describes the functional significance of the RNA structures? Select one: a. Local base-parings are the key causes of unique RNA 3-D structures. b. RNAs have various 3-D structures for their biological functions. c. Changes in RNA structures are employed in controls of transcription and/or translation. d. The termination hairpins or the riboswitches are the actual examples. e. All of these
15. Which correctly describes the functional significance of the RNA structures? Select one: a. Local base-parings...
15. Which correctly describes the functional significance of the RNA structures? Select one: a. Local base-parings are the key causes of unique RNA 3-D structures. b. RNAs have various 3-D structures for their biological functions. c. Changes in RNA structures are employed in controls of transcription and/or translation. d. The termination hairpins or the riboswitches are the actual examples. e. All of these
Riboswitch is a mechanism of gene activity regulation by mRNA conformation. Riboswitch can regulate ______. Select...
Riboswitch is a mechanism of gene activity regulation by mRNA conformation. Riboswitch can regulate ______. Select one: a. transcription b. translation c. both transcription and translation d. neither transcription nor translation
Please answer #10-14 & clearly explain your reasoning and indicate which # you are answering. Thank...
Please answer #10-14 & clearly explain your reasoning and indicate which # you are answering. Thank you so much! 10. DNA is more ____________ than RNA due to the absence of ______ group in the ribose. A. unstable, 3'-OH B. stable, 3'-OH C. unstable, 2'-OH D. stable, 2'-OH E. none of the above 11. The nucleotide that is present in RNA but not DNA is A. thymine. B. uracil. C. adenine. D. cytosine. E. guanine 12. Which of the following...
42. Which is correct about the peptide elongation by ribosome? Select one: a. Addition of a...
42. Which is correct about the peptide elongation by ribosome? Select one: a. Addition of a new amino acid is achieved by peptide transfer from the A site tRNA to the P site URNA. b. Translation is not affected by the cellular availability of GTP. O c. Peptide bond formation is catalyzed by enzymatic proteins in ribosome. O d. The peptide bond is formed by a nucleophilic attack of the A-site NH2- onto the P-site -COOH. O e. None of...
Which of the following is NOT a function of transcription that requires the activity from subunits...
Which of the following is NOT a function of transcription that requires the activity from subunits of the Core RNA Palymerase? a. RNA polymerase activity that base-pairs and polymerizes nucleotides to make mRNA. b. Helicase activity that unwinds the double-stranded DNA molecule for transcription c. Specific recognition of -35 box and -10 box sites in the promoter region. d. General binding that helps RNA polymerase loosely adhere to DNA, before Transcription begins. Oe. Trick Question. The Core RNA polymerase can...
QUESTION 5 Which one of the following explains the RNA molecule the best? O A. It...
QUESTION 5 Which one of the following explains the RNA molecule the best? O A. It contains uracil in place of thymine O B. It is generally a single strand molecule O C. Its sugar is ribose O D. All of the above QUESTION 10 A form of replication in which the two parental DNA strands remain together following DNA replication is O semi-conservative O conservative o dispersive o all of the above QUESTION 11 Which of the following is...
Which of the following statements about transcription factor TFilh are correct Two of the record One...
Which of the following statements about transcription factor TFilh are correct Two of the record One subunit is a protein kinase that phosphorylates the RNA polymerase. All recorrect It is one of the last general transcription factors associated with RA polymerase enter the complex toto an active polymer One tunt wind a heativity the double stranded Deadur betrition Alarger S value for an RNA specifically indicates that the RNA migrates more rapidly through a field of force during centrifugation migrates...
42. Which is correct about the peptide elongation by ribosome? Select one: a. Addition of a new amino acid is achieved by peptide transfer from the A site tRNA to the P site URNA. b. Translation is not affected by the cellular availability of GTP. O c. Peptide bond formation is catalyzed by enzymatic proteins in ribosome. O d. The peptide bond is formed by a nucleophilic attack of the A-site NH2- onto the P-site -COOH. O e. None of...
Which of the following is NOT a function of transcription that requires the activity from subunits of the Core RNA Palymerase? a. RNA polymerase activity that base-pairs and polymerizes nucleotides to make mRNA. b. Helicase activity that unwinds the double-stranded DNA molecule for transcription c. Specific recognition of -35 box and -10 box sites in the promoter region. d. General binding that helps RNA polymerase loosely adhere to DNA, before Transcription begins. Oe. Trick Question. The Core RNA polymerase can...
QUESTION 5 Which one of the following explains the RNA molecule the best? O A. It contains uracil in place of thymine O B. It is generally a single strand molecule O C. Its sugar is ribose O D. All of the above QUESTION 10 A form of replication in which the two parental DNA strands remain together following DNA replication is O semi-conservative O conservative o dispersive o all of the above QUESTION 11 Which of the following is...
Which of the following statements about transcription factor TFilh are correct Two of the record One subunit is a protein kinase that phosphorylates the RNA polymerase. All recorrect It is one of the last general transcription factors associated with RA polymerase enter the complex toto an active polymer One tunt wind a heativity the double stranded Deadur betrition Alarger S value for an RNA specifically indicates that the RNA migrates more rapidly through a field of force during centrifugation migrates...
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