Homework Answers
Answer-
According to the given question-
Sigma factor is denoted as σ also known as is a protein that are required for the bacteria for the initiation of transcription. It promote binding of RNA polymerase with the gene promoter region. When the sigma factor binds with the RNA polymerase, it is called RNA polymerase holoenzyme and each RNA polymerase holoenzyme have one sigma factor so there are more than one sigma factor present in bacteria.
Considering above question-
The core RNA Polymerase enzyme are called holoenzymes attached with sigma factor. since there are more than one sigma factor genes, by mutating a single sigma factor gene there will be some specific genes that will not form which will affect transcription of majority of genes.
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more than one sigma factor no more The core RNA polymerase...
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...
which of the following regarding th sigma factor of E.coil RNA polymerase is correct? a) is...
which of the following regarding th sigma factor of E.coil RNA polymerase is correct? a) is required for termination of an RNA chain b is inseparable from the core enzyme c) will analyse synthesis of RNA from both strands of the DNA template in the absence of the d) combines the core enzyme to confer specific binding to a promoter q2 which of the following is not true of all naturally occurring DNA 1) two hydrogen bonds from A and...
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A....
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A. Only ribonucleoside triphosphates contain the sugar ribose. B. Ribonucleoside triphosphates have low potential energy, making the polymerization reaction endergonic. C. Ribonucleoside triphosphates have high potential energy, making the polymerization reaction exergonic. D. Ribonucleoside monophosphates cannot form complementary base pairs with the DNA template. E. Ribonucleoside triphosphates are not used, rather all use deoxyriboside triphosphates. 14. How is a mutation in a bacterial cell that...
Can someone please help me answer these questions. Thank you! Eukaryotic transcription signals a) This drawing shows the placements of the four main sequences of the eukaryotic core promoter for RNA...
Can someone please help me answer these questions. Thank
you!
Eukaryotic transcription signals
a) This drawing shows the placements of the four main sequences of
the eukaryotic core promoter for RNA polymerase II. Identify each
one and give a brief explanation
b) Which sequences are used in a DPE-driven promoter?
c) Which ones are used in a TATA-driven promoter?
d) Please draw and describe the steps as the transcription factors
work with eukaryotic RNA polymerase II to start transcription of...
Question 2a If the DNA template 5′- ATGGATGC -3′ is transcribed to RNA, the RNA would...
Question 2a If the DNA template 5′- ATGGATGC -3′ is transcribed to RNA, the RNA would be best described as... a. 3′- TACCTACG -5′. b. 5′- ATGGATGC -3′. c. 5′- AUGGAUGC -3′. d. 5′- UACCUACG -5′. e. 3′- UACCUACG -5′. Question 2b Which answer best summarizes how eukaryotic and bacterial RNA polymerases are different? a. Eukaryotes have several types of multimeric RNA polymerases, whereas bacteria only have one monomeric RNA polymerase. b. Eukaryotes have several types of RNA polymerases, one...
Question 20 TFIID is a. a protein and a transcription factor. b. an enzyme. c. a...
Question 20 TFIID is a. a protein and a transcription factor. b. an enzyme. c. a promoter and a transcription factor. d. a promoter. e. part of the TATA box. Question 19 Without maintenance methyltransferase, the changes made by DNA methyltransferase would not a. be able to increase transcription of a gene. b. be passed on from one generation to the next c. coordinate regulation across different genes. d. produce microRNA. e. be able to decrease transcription of a gene....
Answer the questions: Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter ....
Answer the questions:
Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter . Facilitatord. Terminator Question 12 .A specific factor helps RNA polymerase binding to promoters and transcribe genes a Delta b. Beta Gamma d. Sigma Question 13 ............ Promoters lack a TATA box are referred to as TATA less promoters, for example operon Housekeeping genes b. Functional genesc d. Structural genes Question 14 0.5 points Save Answer During "RNA processing" All of the exons are a....
The macromolecular complex that associates with each intron and splices it is called a(n). splicer acrosome...
The macromolecular complex that associates with each intron and splices it is called a(n). splicer acrosome splice engine spliceosome splicing body Transcription in prokaryotes: 1. Requires consensus nucleotide sequences at position -35 and -10 in the promoter region of gene sequence. 2. Requires different sigma factors depending on the environmental stimulus. 3. Can produce a cDNA. All are correct. 3 1 Both 1 and 2 are correct. Which of the following statements about transcription factor TFIIH are correct: Two of...
Where would you find histones? A. Part of the RNA polymerase complex that transcribes DNA. B....
Where would you find histones? A. Part of the RNA polymerase complex that transcribes DNA. B. In a virus, helping to "inject" foreign DNA into a cell. C. Bound to an enhancer to regulate transcription. D. Asscoiated with DNA to make chromatin. What is the role of DNA ligase during DNA replication? A. It unwinds the parental double helix. B. It synthesizes RNA nucleotides to make a primer. C. It joins lagging strand (Okazaki) fragments together. D. It stabilizes the...
The correct answer will be upvoted with positive feedback, giving me incorrect answers will result in...
The correct answer will be upvoted with positive feedback, giving me incorrect answers will result in a downvote. Please don't answer if you don't know it! Evolution Connection The Evolution of Promoters The evolution of genes may be a familiar concept. Mutations can occur in genes during DNA replication, and the result may or may not be beneficial to the cell. By altering an enzyme, structural protein, or some other factor, the process of mutation can transform functions or physical...
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...
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A. Only ribonucleoside triphosphates contain the sugar ribose. B. Ribonucleoside triphosphates have low potential energy, making the polymerization reaction endergonic. C. Ribonucleoside triphosphates have high potential energy, making the polymerization reaction exergonic. D. Ribonucleoside monophosphates cannot form complementary base pairs with the DNA template. E. Ribonucleoside triphosphates are not used, rather all use deoxyriboside triphosphates. 14. How is a mutation in a bacterial cell that...
Can someone please help me answer these questions. Thank
you!
Eukaryotic transcription signals
a) This drawing shows the placements of the four main sequences of
the eukaryotic core promoter for RNA polymerase II. Identify each
one and give a brief explanation
b) Which sequences are used in a DPE-driven promoter?
c) Which ones are used in a TATA-driven promoter?
d) Please draw and describe the steps as the transcription factors
work with eukaryotic RNA polymerase II to start transcription of...
Question 20 TFIID is a. a protein and a transcription factor. b. an enzyme. c. a promoter and a transcription factor. d. a promoter. e. part of the TATA box. Question 19 Without maintenance methyltransferase, the changes made by DNA methyltransferase would not a. be able to increase transcription of a gene. b. be passed on from one generation to the next c. coordinate regulation across different genes. d. produce microRNA. e. be able to decrease transcription of a gene....
Answer the questions:
Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter . Facilitatord. Terminator Question 12 .A specific factor helps RNA polymerase binding to promoters and transcribe genes a Delta b. Beta Gamma d. Sigma Question 13 ............ Promoters lack a TATA box are referred to as TATA less promoters, for example operon Housekeeping genes b. Functional genesc d. Structural genes Question 14 0.5 points Save Answer During "RNA processing" All of the exons are a....
The macromolecular complex that associates with each intron and splices it is called a(n). splicer acrosome splice engine spliceosome splicing body Transcription in prokaryotes: 1. Requires consensus nucleotide sequences at position -35 and -10 in the promoter region of gene sequence. 2. Requires different sigma factors depending on the environmental stimulus. 3. Can produce a cDNA. All are correct. 3 1 Both 1 and 2 are correct. Which of the following statements about transcription factor TFIIH are correct: Two of...
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