BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 16, Problem 1IQ
What advantage might a bacterium gain by linking several genes into a single operon, if all of the gene products participate in a single biochemical pathway?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Figure 5 shows the lac operon structure in Escherichia coli.
a) Name structures P, Q and R.
b) Name substance S.
c) What is the enzyme encoded by gene I. Give its function.
d) What will happen if substance S is absent in the medium?
The mechanism by which lactose controls the lac operon.
A) O Catabolite repression
B) O DNA polymerase
C)
O Induction
D) O Repression
E) O Translation
How do repressors reduce transcription of an operon?
A) recruit RNA polymerase to promoters
B) block the ability of RNA polymerase to bind a promoter
C) break phosphodiester bonds in the DNA
D) inhibit the activity of the ribosome
Chapter 16 Solutions
BIOLOGY
Ch. 16.1 - Prob. 1LOCh. 16.1 - Prob. 2LOCh. 16.1 - Prob. 3LOCh. 16.2 - Explain how proteins can interact with base-pairs...Ch. 16.2 - Prob. 2LOCh. 16.3 - Prob. 1LOCh. 16.3 - Prob. 2LOCh. 16.3 - Explain control of gene expression in the trp...Ch. 16.4 - Prob. 1LOCh. 16.4 - Prob. 2LO
Ch. 16.4 - Prob. 3LOCh. 16.5 - Describe at least two kinds of epigenetic mark.Ch. 16.5 - Explain the function of chromatin-remodeling...Ch. 16.6 - Prob. 1LOCh. 16.6 - Prob. 2LOCh. 16.7 - Prob. 1LOCh. 16.7 - Prob. 2LOCh. 16 - Prob. 1DACh. 16 - What advantage might a bacterium gain by linking...Ch. 16 - Prob. 2IQCh. 16 - Prob. 3IQCh. 16 - In prokaryotes, control of gene expression usually...Ch. 16 - Prob. 2UCh. 16 - Prob. 3UCh. 16 - The lac operon is controlled by two main proteins....Ch. 16 - In eukaryotes, binding of RNA polymerase to a...Ch. 16 - In eukaryotes, the regulation of gene expression...Ch. 16 - In the trp operon, the repressor binds to DNA a....Ch. 16 - Prob. 1ACh. 16 - Specific transcription factors in eukaryotes...Ch. 16 - Repression in the trp operon and induction in the...Ch. 16 - Regulation by small RNAs and alternative splicing...Ch. 16 - Eukaryotic mRNAs differ from prokaryotic mRNAs in...Ch. 16 - In the cell cycle, cyclin proteins are produced in...Ch. 16 - A mechanism of control in E. coli not discussed in...Ch. 16 - You have isolated a series of mutants affecting...Ch. 16 - Examples of positive and negative control of...Ch. 16 - What forms of eukaryotic control of gene...Ch. 16 - The number and type of proteins found in a cell...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Say you have an operon called the CAKE operon, it contains genes for the enzymes require to convert C into E via following steps C-->A-->K-->E. 1) if this operon is *inducible*, the maximum level of the enzymes for A-->K is most likely made when there is: a) high level of C b) high level of E c) low level of C d) low level of E e) unpredictable - depends on whcih is the inducer molecule 2) if the operon is *repressible*, the maximum level of the enzymes for A-->K is most likely made when there is: a) high level of C b) high level of E c) low level of C d) low level of E e) unpredictable - depends on which is the co-repressor moleculearrow_forwardSay you have an operon called the CAKE operon, it contains genes for the enzymes require to convert C into E via following steps C-->A-->K-->E. 1) if this operon is *inducible*, the maximum level of the enzymes for A-->K is most likely made when there is: a) high level of C b) high level of E c) low level of C d) low level of E e) unpredictable - depends on whcih is the inducer molecule 2) if the operon is *repressible*, the maximum level of the enzymes for A-->K is most likely made when there is: a) high level of C b) high level of E c) low level of C d) low level of E e) unpredictable - depends on whcih is the co-repressor moleculearrow_forwardThe lac operon has which of the following characteristics? O 1) usually requires an activator protein bound to the promoter to be transcribed. O 2) is inactive in the presence of lactose. O 3) is active in the presence of a repressor. O 4) Is a constitutively active operator. O5) is only active in the presence of lactose.arrow_forward
- An operon that encodes enzymes that degrade ampicilin is most likely __________ . A) inducible B) under positive control C) under negative control D) repressible E) controlled by CAParrow_forwardIf a researcher moves the promoter for the lac operon to the region between the beta galactosidase (lacZ) gene and the permease (lacY) gene, which of the following results would you expect? A) The three genes of the lac operon will be expressed normally. B) The repressor will not be able to bind to the operon. C) The operon will still transcribe the lacZ and lacY genes, but the mRNA will not be translated. D) LacZ will not be transcribed and Beta galactosidase will not be produced.arrow_forwardWhat are the similarities and differences between DNA Polymerase and RNA polymerase? Explain the process of how the Lactose operon functions in the presence of lactose, glucose, both, and without lactose. Explain the process of how the Tryptophan operon functions in the presence of tryptophan and in the absence of tryptophan. What are the three types of horizontal gene transfer among prokaryotes? How do these three types of horizontal gene transfer work? What are restriction endonucleases, restriction fragments, & explain the general premise behind Recombinant DNA technology. Describe: STR’s, Mitotyping, & SNP’s in relation to DNA profiling What are Transgenic or Genetically Modified Organisms? Provide examples using herbicide tolerance and pest resistance.arrow_forward
- If tryptophan is absent from the environment of E.coli, the trp operon will be _______ A) mutated B) activated, but only partially C) activated D) repressedarrow_forwardWhat are the effects of the following conditions on Lac operon of bacteria? Do not forget to mention about the role of repressor, activator, RNA polymerase in each case! A) Glucose is absent and lactose is present B) Glucose is present and lactose is present C) Glucose is present and lactose is absentarrow_forwardThe lac operon contains the genes that the bacterium needs to be able to use lactose as a carbon source. What would happen to the regulation of the Lac operon if: a) a mutation has occurred in the Lac Z gene which results in the formation of no functional β-galactosidase b) a mutation has occurred in the CAP protein so that cAMP cannot bindarrow_forward
- High levels of transcription of the lactose operon require all of the following, EXCEPT: A) O the presence of lactose B) O high levels of CAMP (cyclic AMP) C) O the absence of glucose D) O the formation of allolactose E) O A-D are all requiredarrow_forwardThe lac operon in E. coli bacteria codes for proteins that break down (digest) the disaccharide lactose. Therefore, the lac operon is expressed at its highest levels when there is: A) glucose but no lactose B) lactose and glucose C) lactose but no glucose D) no glucose or lactosearrow_forwardIn their studies of Streptococcus pneumoniae, members of Avery's lab demonstrated that bacteria can pick up and use DNA from the environment. This was the first documentation of the process now known as transformation. We now know that transformation a) can transfer up to 20 genes from the environment into a bacterial cell. b) can be made permanent if the stretch of DNA includes the operator sequence from an operon. c) occurs more readily if the bacterial cells have first been infected with a temperate bacteriophage. d) requires the presence of a geno for ampicillin resistance in the stretch of DNA. e) all of the above are true of transformation O f) none of the above is correctarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
QCE Biology: Introduction to Gene Expression; Author: Atomi;https://www.youtube.com/watch?v=a7hydUtCIJk;License: Standard YouTube License, CC-BY