![Question 1 2 pts The expression of certain bacterial genes is regulated. Match each term with the correct definition This is a small molecule that binds a repressor protein, causing the protein to change from an inactive form to an active form. I Choose ] Regulatory gene Promoter Terminator Structural gene Repressor protein Operator Inducer Corepressor This is a specific nucleotide sequen that a repressor protein binds to This is a specific nucleotide sequence Choose where RNA polymerase begins transcription This is a small molecule that binds to a repressor protein, causing the protein to changes its shape from an active form to an inactive form.](http://img.homeworklib.com/questions/a67288a0-6bc3-11eb-b693-95f12d90b218.png?x-oss-process=image/resize,w_560)
Homework Answers
This is a small molecule that changes the repressor protein from an inactive form to an active form - corepressor (tryptophan is a corepressor in trp operon).
This is specific nucleotide sequence that a repressor protein binds to - operator.
This is a specific nucleotide sequence where RNA polymerase begins transcription b- promoter
This is a small molecule that binds to a repressor protein, causing the protein to change its shape from an active to an inactive form - inducer (eg in lac operon, allolactose is the inducer)
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Question 1 2 pts The expression of certain bacterial genes is regulated. Match each term with...
Match each term associated with genes and control of gene expression with the appropriate description. A...
Match each term associated with genes and control of gene expression with the appropriate description. A transcriptional unit" that consists of promoter multiple genes under the control of a single regulatory element. A transcriptional regulatory protein (prokaryotic or eukaryotic) which works by turning on or increasing gene transcription. activator The region of a gene to which RNA polymerase binds. Enhancer A transcriptional regulatory protein prokaryotic or eukaryotic) which works by turning off or decreasing gene transcription. repressor A molecule that...
Question 1 Match the term with the best definition or description; most topics relate to the...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
Yet, all the cells in your body contain the same genes (and same alleles). The difference...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
The diagram below illustrates the LAC operon in its OFF state when the inducer molecule —lactose—is...
The diagram below illustrates the LAC operon in its OFF state when the inducer molecule —lactose—is absent. Predict the ways in which the following conditions will affect the transcription of the lactose-utilization genes. OPERON Regulatory Promoter Operator_ gene Lactose-utilization genes DNA mRNA RNA polymerase cannot attach to promoter Active repressor Protein If a mutation in the regulatory gene results in a misfolding of the repressor protein so that it can no longer bind DNA, the lactose-utilization genes O Will be...
Help! I don't need an explanation, but I got both of these wrong... Question 8 0.25...
Help! I don't need an explanation, but I got both of these
wrong...
Question 8 0.25 pts Which of the following is FALSE of bacterial repressor proteins? O Must bind a corepressor to be active O Encoded by regulatory gene Binds operator O Encoded in operon O can block RNA polymerase binding to operon
26. The lac operon in E. coli consists of genes that code for enzymes necessary for...
26. The lac operon in E. coli consists of genes that code for enzymes necessary for the breakdown of lactose. When lactose is absent, the operon is inactive because a repressor protein binds to a specific site in the lac operon. When lactose is present, lactose molecules bind to the repressor protein, causing the repressor protein to dissociate from the binding site. In the absence of glucose (a preferred energy source for bacteria), the protein CAP binds to a regulatory...
here is the diagram ecause there is no repressor protein attached to the operator, what enzyme...
here is the diagram
ecause there is no repressor protein attached to the operator, what enzyme con attach to the promoter and move past the operator to transcribe the structural genes? Color this enzyme pink "color the repressor gene purple and the repressor protein it codes for red. Examine the shape of the repressor protein. 45) Is it an active or inactiverepressor protein? The diagram below shows the trp operon when turned off." Repressor gene Promoter Operator Structural genes DNA...
for 1-5 define those The Lac operon is an inducible set of genes found in bacteria...
for
1-5 define those
The Lac operon is an inducible set of genes found in bacteria cells that helps the bacteria to metabolize the disaccharide lactose. When it is turned on it produces proteins that pump lactose into the bacteria cell and break it down into glucose and galactose, which can then be used by the bacteria as a source of energy The two figures below show the Lac Operon along with the lacl gene (which regulates the Lac operon...
Question 7 2 pts Which of these genes would not likely be regulated by the bacterial...
Question 7 2 pts Which of these genes would not likely be regulated by the bacterial SOS response?! Translesion DNA polymerase Cell division promoter Holliday junction branch migration enzyme Nucleotide excision repair enzyme Question 8 2 pts Which of these mutations is likely to have the greatest impact on the amino acid composition of the resulting protein? Silent Synonymous Frameshift Missense Question 9 2 pts What would be the result of perfect and continuous suppression of the lac operon in...
ect Question 8 0/2 pts Which of the following statements about RNA polymerase is NOT true?...
ect Question 8 0/2 pts Which of the following statements about RNA polymerase is NOT true? RNA polymerase finishes transcription as soon as it reaches the terminator. RNA polymerase adds a ribonucleotide to the 3' end of a growing RNA molecule. During transcription of a gene, RNA polymerase reads only one strand of DNA. RNA polymerase binds to a promoter to initiate transcription. - U 000 20 O 3 $ 4 % 5 & 7 6. 8
Match each term associated with genes and control of gene expression with the appropriate description. A transcriptional unit" that consists of promoter multiple genes under the control of a single regulatory element. A transcriptional regulatory protein (prokaryotic or eukaryotic) which works by turning on or increasing gene transcription. activator The region of a gene to which RNA polymerase binds. Enhancer A transcriptional regulatory protein prokaryotic or eukaryotic) which works by turning off or decreasing gene transcription. repressor A molecule that...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
Yet, all the cells in your body contain the same
genes (and same alleles). The difference across cell types
is that genes get selectively expressed (turned on or off)
based on the proteins needed for cellular function given their
environment.
Select which statement explains the reason why hair does not
normally grow on your muscle cells.
a.
Muscle cells have the gene for keratin, but do not express
it
b.
Muscle cells do not have the gene for keratin and...
The diagram below illustrates the LAC operon in its OFF state when the inducer molecule —lactose—is absent. Predict the ways in which the following conditions will affect the transcription of the lactose-utilization genes. OPERON Regulatory Promoter Operator_ gene Lactose-utilization genes DNA mRNA RNA polymerase cannot attach to promoter Active repressor Protein If a mutation in the regulatory gene results in a misfolding of the repressor protein so that it can no longer bind DNA, the lactose-utilization genes O Will be...
Help! I don't need an explanation, but I got both of these
wrong...
Question 8 0.25 pts Which of the following is FALSE of bacterial repressor proteins? O Must bind a corepressor to be active O Encoded by regulatory gene Binds operator O Encoded in operon O can block RNA polymerase binding to operon
26. The lac operon in E. coli consists of genes that code for enzymes necessary for the breakdown of lactose. When lactose is absent, the operon is inactive because a repressor protein binds to a specific site in the lac operon. When lactose is present, lactose molecules bind to the repressor protein, causing the repressor protein to dissociate from the binding site. In the absence of glucose (a preferred energy source for bacteria), the protein CAP binds to a regulatory...
here is the diagram
ecause there is no repressor protein attached to the operator, what enzyme con attach to the promoter and move past the operator to transcribe the structural genes? Color this enzyme pink "color the repressor gene purple and the repressor protein it codes for red. Examine the shape of the repressor protein. 45) Is it an active or inactiverepressor protein? The diagram below shows the trp operon when turned off." Repressor gene Promoter Operator Structural genes DNA...
for
1-5 define those
The Lac operon is an inducible set of genes found in bacteria cells that helps the bacteria to metabolize the disaccharide lactose. When it is turned on it produces proteins that pump lactose into the bacteria cell and break it down into glucose and galactose, which can then be used by the bacteria as a source of energy The two figures below show the Lac Operon along with the lacl gene (which regulates the Lac operon...
Question 7 2 pts Which of these genes would not likely be regulated by the bacterial SOS response?! Translesion DNA polymerase Cell division promoter Holliday junction branch migration enzyme Nucleotide excision repair enzyme Question 8 2 pts Which of these mutations is likely to have the greatest impact on the amino acid composition of the resulting protein? Silent Synonymous Frameshift Missense Question 9 2 pts What would be the result of perfect and continuous suppression of the lac operon in...
ect Question 8 0/2 pts Which of the following statements about RNA polymerase is NOT true? RNA polymerase finishes transcription as soon as it reaches the terminator. RNA polymerase adds a ribonucleotide to the 3' end of a growing RNA molecule. During transcription of a gene, RNA polymerase reads only one strand of DNA. RNA polymerase binds to a promoter to initiate transcription. - U 000 20 O 3 $ 4 % 5 & 7 6. 8
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