Homework Answers
Answer 1. A splitting or breaking lactose into glucose so that bacteria can use it..
Q 3. - + Due to lacI+ , its a trans function gene ,can effect genes on other dna also
Q6. + + As lac I mutant for lactose binding is present and on other side repressor cannot bind the operator.
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Question 1 01. is The product of the lac Z gene is an enzyme. What does...
GENITICS UNIT VIA NAME 30) Present a detailed description of the actions of the regulatory protein...
GENITICS UNIT VIA NAME 30) Present a detailed description of the actions of the regulatory protein systems. "y proteins in inducible and repressible name Give the names of the components of an Operon In the lac operon, the product of structural gene lacZ is capable of A) nonautonomous replication B) forming lactose from two glucose molecules C) replacing hexokinase in the early steps of glycolysis D) splitting the e-linkage of lactose E) forming ATP from pyruvate Compare and contrast positive...
The lac operon in E. coli is a well-studied gene system, and β-galactosidase (β-gal) is the...
The lac operon in E. coli is a well-studied gene system, and
β-galactosidase (β-gal) is the product of the lacZ gene. The
diploid conditions represent the addition of a plasmid carrying
different components of the lac operon. Determine if β-gal will be
generated under the conditions. Assume that glucose is absent. A +
in the genotype indicates a functioning gene, while a – indicates a
loss-of-function allele. The OC is an operator mutant that cannot
bind the lacI protein. Use...
match the following 1. Fructose 1,6-bisphosphate is converted to Fructose 6- phosphate through this enzyme _____...
match the following 1. Fructose 1,6-bisphosphate is converted to Fructose 6- phosphate through this enzyme _____ 2. Synthesis of glucose from noncarbohydrate precursors _____ 3. Stage in which two molecules of ATP are consumed _____ 4. This is formed from pyruvate in yeast and several other microorganisms through fermentation _____ 5. The isomerization of glucose 6-phosphate to fructose 6-phosphate is a coversion of an aldose into a …._____ 6. Pyruvate is converted by pyruvate carboxylase into this intermediate _____ 7....
Question 59 Not yet answered Which of the listed characteristics is a key difference between prokaryotes...
Question 59 Not yet answered Which of the listed characteristics is a key difference between prokaryotes and eukaryotes? Points out of 2.50 p Flag question Select one: O a. all of the listed characteristics are shared between prokaryotes and eukaryotes O b. Eukaryotes, but not prokaryotes, undergo DNA replication before cell division O O c. Eukaryotes, but not prokaryotes, perform cell respiration to produce ATP through oxidative phosphorylation d. Prokaryotes, but not eukaryotes, are capable of forming a protective cell...
The gene machine program shows you what happens when lactose is present in E. coli, and...
The gene machine program shows you what happens when lactose is present in E. coli, and how the lac operon is under negative control. However, the lac operon is also under positive control from a protein called CRP, eAMP Receptor Protein. The absence of the lac repressor is essential but not sufficient for effective transcription of the lac operon. RNA polymerase also depends on the presence of CRP. Like the lac repressor, which can bind to the DNA and lactose....
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized...
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized to form water c. Reduced to form CO2 d. Oxidized to form CO2 2. Which of the following describes the equation: FAD + XH à FADH2 + X. a. FAD is reduced to FADH2 b. It is a coupled reduction - oxidation reaction c. XH, is oxidized to X d. All of the above 3. Which of the following is FALSE about glycolysis? a....
Question 4: (1 point) Name one enzyme you would introduce into Z. mobilis to decrease the...
Question 4: (1 point) Name one enzyme you would introduce into Z. mobilis to decrease the flux through its ethanol-producing pathway. ΕιΠαΠΠΙΠΟΠΠΕΠιαιιυιυιιιΙο Πυνο Thomas W Jeffries The complete genome sequence of the ethanol-producing bacterium Zymomonas mobilis provides new opportunities for industrial alcohol fermentation. HO D 2016- -glucose 2 Ethanol HC OH YOH 2 NAD 2002 ATP:D-glucose 6-phosphotransferase 2 NADH+H B-o-glucose-6P HC Pyruvato OH Pyruvate TOH NADH+H 2 ATP NADP npg © 2005 Nature Publishing Group http://www.nature.com/naturebiotechnology B-o-glucose-6-phosphate: NADP. 1-oxoreductaso 2...
Which of the following statements about Huntington's is true? You can retry this question, the average...
Which of the following statements about Huntington's is true? You can retry this question, the average of your two answers is recorded. You should see feedback if you get a question wrong. O a. The mutated allele(s) has/have lost the function of keeping brain cells healthy, and is/are therefor a dominant disease O b. Huntington is a very rare and therfor recessive. c. Huntington strikes people after reproductive age and is therefor dominant. d. The mutated allele(s) has/have gained the...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
PART A Correctly order the steps 1-8 as they occur during the transport of glucose via...
PART A
Correctly order the steps 1-8 as they occur during the transport
of glucose via the phosphotransferase system (PTS):
HPr donates the phosphate group to enzyme IIA (EIIA);
phosphoenolpyruvate is produced as an intermediate of glycolysis;
EI donates the phosphate group to a histidine-rich protein (HPr);
as it enters the cell glucose is phosphorylated by EIIB;
phosphoenolpyruvate donates its high-energy phosphate group to
enzyme I (EI); EIIA passes its phosphate group to Enzyme IIB
(EIIB); glucose is transported across...
GENITICS UNIT VIA NAME 30) Present a detailed description of the actions of the regulatory protein systems. "y proteins in inducible and repressible name Give the names of the components of an Operon In the lac operon, the product of structural gene lacZ is capable of A) nonautonomous replication B) forming lactose from two glucose molecules C) replacing hexokinase in the early steps of glycolysis D) splitting the e-linkage of lactose E) forming ATP from pyruvate Compare and contrast positive...
The lac operon in E. coli is a well-studied gene system, and
β-galactosidase (β-gal) is the product of the lacZ gene. The
diploid conditions represent the addition of a plasmid carrying
different components of the lac operon. Determine if β-gal will be
generated under the conditions. Assume that glucose is absent. A +
in the genotype indicates a functioning gene, while a – indicates a
loss-of-function allele. The OC is an operator mutant that cannot
bind the lacI protein. Use...
Question 59 Not yet answered Which of the listed characteristics is a key difference between prokaryotes and eukaryotes? Points out of 2.50 p Flag question Select one: O a. all of the listed characteristics are shared between prokaryotes and eukaryotes O b. Eukaryotes, but not prokaryotes, undergo DNA replication before cell division O O c. Eukaryotes, but not prokaryotes, perform cell respiration to produce ATP through oxidative phosphorylation d. Prokaryotes, but not eukaryotes, are capable of forming a protective cell...
The gene machine program shows you what happens when lactose is present in E. coli, and how the lac operon is under negative control. However, the lac operon is also under positive control from a protein called CRP, eAMP Receptor Protein. The absence of the lac repressor is essential but not sufficient for effective transcription of the lac operon. RNA polymerase also depends on the presence of CRP. Like the lac repressor, which can bind to the DNA and lactose....
1. During the aerobic metabolism of glucose, glucose is a. Reduced to form water b. Oxidized to form water c. Reduced to form CO2 d. Oxidized to form CO2 2. Which of the following describes the equation: FAD + XH à FADH2 + X. a. FAD is reduced to FADH2 b. It is a coupled reduction - oxidation reaction c. XH, is oxidized to X d. All of the above 3. Which of the following is FALSE about glycolysis? a....
Question 4: (1 point) Name one enzyme you would introduce into Z. mobilis to decrease the flux through its ethanol-producing pathway. ΕιΠαΠΠΙΠΟΠΠΕΠιαιιυιυιιιΙο Πυνο Thomas W Jeffries The complete genome sequence of the ethanol-producing bacterium Zymomonas mobilis provides new opportunities for industrial alcohol fermentation. HO D 2016- -glucose 2 Ethanol HC OH YOH 2 NAD 2002 ATP:D-glucose 6-phosphotransferase 2 NADH+H B-o-glucose-6P HC Pyruvato OH Pyruvate TOH NADH+H 2 ATP NADP npg © 2005 Nature Publishing Group http://www.nature.com/naturebiotechnology B-o-glucose-6-phosphate: NADP. 1-oxoreductaso 2...
Which of the following statements about Huntington's is true? You can retry this question, the average of your two answers is recorded. You should see feedback if you get a question wrong. O a. The mutated allele(s) has/have lost the function of keeping brain cells healthy, and is/are therefor a dominant disease O b. Huntington is a very rare and therfor recessive. c. Huntington strikes people after reproductive age and is therefor dominant. d. The mutated allele(s) has/have gained the...
42. Which statement is NOT true about DNA? a) DNA acts like an enzyme by binding amino acids together using dehydration synthesis. b) Before cells divide both strands must be copied and one is provided for each new cell cm RNA is copied from a piece of DNA termed a gene. d) DNA is not always copied perfectly. Mistakes, mutations, occur and result in changed proteins, e) DNA functions as code for the synthesis of proteins. 43. A section of...
PART A
Correctly order the steps 1-8 as they occur during the transport
of glucose via the phosphotransferase system (PTS):
HPr donates the phosphate group to enzyme IIA (EIIA);
phosphoenolpyruvate is produced as an intermediate of glycolysis;
EI donates the phosphate group to a histidine-rich protein (HPr);
as it enters the cell glucose is phosphorylated by EIIB;
phosphoenolpyruvate donates its high-energy phosphate group to
enzyme I (EI); EIIA passes its phosphate group to Enzyme IIB
(EIIB); glucose is transported across...
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