Homework Answers
Sigma subunit is absolutely required to initiate transcription as other subuits like alpha , beta and omega are responsible for the elongation process and cannot initiate the transcription process.The core RNA polymerase enzyme binds with sigma protein subunit to initiate transcription.
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Which subunit of RNA polymerase is absolutely required to initiate transcription? O O OOO Answers A-D...
Part A The sigma (?) subunit binds to the core RNA polymerase enzyme. The function of...
Part
A
The sigma (?) subunit binds to the core RNA polymerase
enzyme. The function of this sigma factor is to recognize and bind
to the promoter of a gene so that transcription can be initiated.
The closeup shows the secondary structure of the sigma (?)
subunit, which consists of four domains. Identify the domains
labeled 1-3.
The sigma (?) subunit binds to the core RNA polymerase
enzyme. The function of this sigma factor is to recognize and bind
to...
The following elements are needed for transcription to initiate in E. coli: a) an origin and...
The following elements are needed for transcription to initiate in E. coli: a) an origin and RNA polymerase b) initiator protein and a promoter c) the sigma subunit of RNA polymerase and an RNA template d) RNA polymerase and a promoter
The segments of DNA where transcription begins have a binding site for RNA polymerase. These segments...
The segments of DNA where transcription begins have a binding site for RNA polymerase. These segments are known as Select one: O A. promoters. B. sigma. O C. initiation factors. O D. the holoenzyme.
QUESTION 19 Which of the following subunits plays no role in chain elongation during transcription? O...
QUESTION 19 Which of the following subunits plays no role in chain elongation during transcription? O a) RNA polymerase holoenzyme O b) sigma factor O c) RNA polymerase core enzyme O d) all of the above O e) none of the above
1. Which of the following is a correct comparison between RNA polymerase holoenzyme that functions in...
1. Which of the following is a correct comparison between RNA polymerase holoenzyme that functions in transcription and the primase enzyme that functions in DNA replication? a) Both enzymes synthesize RNA b) Both enzymes are bound by sigma factor c) Both enzymes shnthesize DNA d) Both enzymes are composed of RNA 2) How many RNA codons encode 60 amino acids? a) 60 b) 180 c) 30 d) 20
Which of the following is NOT a difference between DNA and RNA synthesis? a. the nature...
Which of the following is NOT a difference between DNA and RNA synthesis? a. the nature of the nucleotide used b. the direction of synthesis c. the presence of discrete termination signals d. the simultaneous coding from both strands of DNA. During transcription, separation of the DNA strands is necessary. This involves: a. During transcription, separation of the DNA strands is necessary. This involves: b. separation of long segments of the DNA corresponding to genes. c. separation in only a...
Regarding the efficient initiation of transcription by RNA polymerase II, which specific "upstream" signals appear to...
Regarding the efficient initiation of transcription by RNA polymerase II, which specific "upstream" signals appear to be involved? A. TATA box sequences B. GGTTC C. TTTTAAAA D. any DNA sequence E. Pribnow box
QUESTION 1 QUESTION 5 QUESTION 11 Identify the components required for translation initiation in bacteria What...
QUESTION 1 QUESTION 5 QUESTION 11 Identify the components required for translation initiation in bacteria What is the enzymatic component of the ribosome? A Protein Identify the TRANS components of the transcription initiation complex in bacteria ATFIE Bir RNA C. TATA BOX D-10 and 35 sequences E Signa factor B. Carbohydrates C.RNA CATFIE B. 5methyl guanosine cap C. Shine-Dalgamo Sequence D. Sigma factor CETFIID (TBP and TAFS) FTFIIB G. Initiator RNA H.10 and 35 sequences EL Smal ribosomal subunit J....
Which of the following statements is true? A. RNA polymerase has a proofreading activity B. Prokaryotic...
Which of the following statements is true? A. RNA polymerase has a proofreading activity B. Prokaryotic RNA usually undergoes nuclear processing C. Polypeptides are synthesized by addition of amino acids to the amino terminus. D. The 3' end of mRNA corresponds to the carboxyl terminus of the protein. Grade 2. Which of the following A. It may be autocatalytic. B. Spliceosomes are present in organelles and nuclei C. It involves removal of exons is true regarding RNA processing? D. It...
Answer the questions: Question 1 Transcription begins at the..... a. operon o b. repressor c. genome...
Answer the questions:
Question 1 Transcription begins at the..... a. operon o b. repressor c. genome 17d. promoter Question 2 0.5 points Save RNA is synthesized on a DNA template in a process called replication, DNA polymerase translation, RNA polymerase transcription, RNA polymerise t ranscription, DNA polymerase Question 3 Which eukaryotic RNA polymerase makes tRNA's? a RNA polymerase IIIb. Any of these RNA polymerase I od RNA polymerase II A Moving to another question will save this response. Question 4...
Part
A
The sigma (?) subunit binds to the core RNA polymerase
enzyme. The function of this sigma factor is to recognize and bind
to the promoter of a gene so that transcription can be initiated.
The closeup shows the secondary structure of the sigma (?)
subunit, which consists of four domains. Identify the domains
labeled 1-3.
The sigma (?) subunit binds to the core RNA polymerase
enzyme. The function of this sigma factor is to recognize and bind
to...
The segments of DNA where transcription begins have a binding site for RNA polymerase. These segments are known as Select one: O A. promoters. B. sigma. O C. initiation factors. O D. the holoenzyme.
QUESTION 19 Which of the following subunits plays no role in chain elongation during transcription? O a) RNA polymerase holoenzyme O b) sigma factor O c) RNA polymerase core enzyme O d) all of the above O e) none of the above
QUESTION 1 QUESTION 5 QUESTION 11 Identify the components required for translation initiation in bacteria What is the enzymatic component of the ribosome? A Protein Identify the TRANS components of the transcription initiation complex in bacteria ATFIE Bir RNA C. TATA BOX D-10 and 35 sequences E Signa factor B. Carbohydrates C.RNA CATFIE B. 5methyl guanosine cap C. Shine-Dalgamo Sequence D. Sigma factor CETFIID (TBP and TAFS) FTFIIB G. Initiator RNA H.10 and 35 sequences EL Smal ribosomal subunit J....
Which of the following statements is true? A. RNA polymerase has a proofreading activity B. Prokaryotic RNA usually undergoes nuclear processing C. Polypeptides are synthesized by addition of amino acids to the amino terminus. D. The 3' end of mRNA corresponds to the carboxyl terminus of the protein. Grade 2. Which of the following A. It may be autocatalytic. B. Spliceosomes are present in organelles and nuclei C. It involves removal of exons is true regarding RNA processing? D. It...
Answer the questions:
Question 1 Transcription begins at the..... a. operon o b. repressor c. genome 17d. promoter Question 2 0.5 points Save RNA is synthesized on a DNA template in a process called replication, DNA polymerase translation, RNA polymerase transcription, RNA polymerise t ranscription, DNA polymerase Question 3 Which eukaryotic RNA polymerase makes tRNA's? a RNA polymerase IIIb. Any of these RNA polymerase I od RNA polymerase II A Moving to another question will save this response. Question 4...
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