The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

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Answer 1

Question

Chapter 18, Problem 1TYK

Summary Introduction

Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Genes involved in the metabolism of the lactose are considered to be an operon because they are controlled by the same promoter. The operon is the gene segment, which is controlled by the same promoter.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (d) gives that the genes are all controlled by the same promoter. The entire structural genes that encode enzymes required to use lactose as an energy source lie adjacent to each other in the lactose (or lac) operon under the control of a single lac promoter. Hence, Option (d) is correct.

Explanation for incorrect answers:

Option (a) gives that the genes occupy adjacent locations on the E. coli chromosome. The gene sequence, which regulates the metabolism of the lactose, is not located adjacently; they are located on the same DNA (deoxyribonucleic acid) sequence. So, it is an incorrect option.

Option (b) gives that the genes have a similar function. The genes that are involved in the metabolism of the lactose have different functions. They are involved in the secretion of different enzymes. So, it is an incorrect option.

Option (c) gives that the genes are all required for normal cell functioning. These genes are not required for the normal metabolism of the lactose in the cell. The operons are only responsible for the regulation of the genes. So, it is an incorrect option.

Hence, options (a), (b), and (c) are incorrect.

Conclusion

All the genes involved in the metabolism of the lactose are controlled by the same promoter and are called operon.

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19. On the diagram below a. Label the three pictures as: DNA; polypeptide; or RNA. b. Label the arrows as: translation or transcription/RNA processing. c. Add the following details to the diagram. Promoter region TATA box Transcription start site Transcription terminator Intron (A,B,C,D) Exons (1,2,3,4,5) Splice sites 5' cap 5' UTR (untranslated region) 3' poly A tail 3' UTR (untranslated region) Translational start (AUG) Translational stop (UGA, UAG, or UAA) N and C ends of polypeptide 0000

Match the letter labels in the figure below to the terms. Some letter labels are not used. MNNNNNNIN M C B A M D F E H K G 8

The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for? 3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2

Answer 2

Question

Chapter 18, Problem 1TYK

Summary Introduction

Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Genes involved in the metabolism of the lactose are considered to be an operon because they are controlled by the same promoter. The operon is the gene segment, which is controlled by the same promoter.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (d) gives that the genes are all controlled by the same promoter. The entire structural genes that encode enzymes required to use lactose as an energy source lie adjacent to each other in the lactose (or lac) operon under the control of a single lac promoter. Hence, Option (d) is correct.

Explanation for incorrect answers:

Option (a) gives that the genes occupy adjacent locations on the E. coli chromosome. The gene sequence, which regulates the metabolism of the lactose, is not located adjacently; they are located on the same DNA (deoxyribonucleic acid) sequence. So, it is an incorrect option.

Option (b) gives that the genes have a similar function. The genes that are involved in the metabolism of the lactose have different functions. They are involved in the secretion of different enzymes. So, it is an incorrect option.

Option (c) gives that the genes are all required for normal cell functioning. These genes are not required for the normal metabolism of the lactose in the cell. The operons are only responsible for the regulation of the genes. So, it is an incorrect option.

Hence, options (a), (b), and (c) are incorrect.

Conclusion

All the genes involved in the metabolism of the lactose are controlled by the same promoter and are called operon.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 18, Problem 1TYK

Summary Introduction

Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Genes involved in the metabolism of the lactose are considered to be an operon because they are controlled by the same promoter. The operon is the gene segment, which is controlled by the same promoter.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (d) gives that the genes are all controlled by the same promoter. The entire structural genes that encode enzymes required to use lactose as an energy source lie adjacent to each other in the lactose (or lac) operon under the control of a single lac promoter. Hence, Option (d) is correct.

Explanation for incorrect answers:

Option (a) gives that the genes occupy adjacent locations on the E. coli chromosome. The gene sequence, which regulates the metabolism of the lactose, is not located adjacently; they are located on the same DNA (deoxyribonucleic acid) sequence. So, it is an incorrect option.

Option (b) gives that the genes have a similar function. The genes that are involved in the metabolism of the lactose have different functions. They are involved in the secretion of different enzymes. So, it is an incorrect option.

Option (c) gives that the genes are all required for normal cell functioning. These genes are not required for the normal metabolism of the lactose in the cell. The operons are only responsible for the regulation of the genes. So, it is an incorrect option.

Hence, options (a), (b), and (c) are incorrect.

Conclusion

All the genes involved in the metabolism of the lactose are controlled by the same promoter and are called operon.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 18, Problem 1TYK

Summary Introduction

Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Genes involved in the metabolism of the lactose are considered to be an operon because they are controlled by the same promoter. The operon is the gene segment, which is controlled by the same promoter.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (d) gives that the genes are all controlled by the same promoter. The entire structural genes that encode enzymes required to use lactose as an energy source lie adjacent to each other in the lactose (or lac) operon under the control of a single lac promoter. Hence, Option (d) is correct.

Explanation for incorrect answers:

Option (a) gives that the genes occupy adjacent locations on the E. coli chromosome. The gene sequence, which regulates the metabolism of the lactose, is not located adjacently; they are located on the same DNA (deoxyribonucleic acid) sequence. So, it is an incorrect option.

Option (b) gives that the genes have a similar function. The genes that are involved in the metabolism of the lactose have different functions. They are involved in the secretion of different enzymes. So, it is an incorrect option.

Option (c) gives that the genes are all required for normal cell functioning. These genes are not required for the normal metabolism of the lactose in the cell. The operons are only responsible for the regulation of the genes. So, it is an incorrect option.

Hence, options (a), (b), and (c) are incorrect.

Conclusion

All the genes involved in the metabolism of the lactose are controlled by the same promoter and are called operon.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 18, Problem 1TYK

Summary Introduction

Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Genes involved in the metabolism of the lactose are considered to be an operon because they are controlled by the same promoter. The operon is the gene segment, which is controlled by the same promoter.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (d) gives that the genes are all controlled by the same promoter. The entire structural genes that encode enzymes required to use lactose as an energy source lie adjacent to each other in the lactose (or lac) operon under the control of a single lac promoter. Hence, Option (d) is correct.

Explanation for incorrect answers:

Option (a) gives that the genes occupy adjacent locations on the E. coli chromosome. The gene sequence, which regulates the metabolism of the lactose, is not located adjacently; they are located on the same DNA (deoxyribonucleic acid) sequence. So, it is an incorrect option.

Option (b) gives that the genes have a similar function. The genes that are involved in the metabolism of the lactose have different functions. They are involved in the secretion of different enzymes. So, it is an incorrect option.

Option (c) gives that the genes are all required for normal cell functioning. These genes are not required for the normal metabolism of the lactose in the cell. The operons are only responsible for the regulation of the genes. So, it is an incorrect option.

Hence, options (a), (b), and (c) are incorrect.

Conclusion

All the genes involved in the metabolism of the lactose are controlled by the same promoter and are called operon.

Answer 6

Chapter 18, Problem 1TYK

Summary Introduction

Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Genes involved in the metabolism of the lactose are considered to be an operon because they are controlled by the same promoter. The operon is the gene segment, which is controlled by the same promoter.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (d) gives that the genes are all controlled by the same promoter. The entire structural genes that encode enzymes required to use lactose as an energy source lie adjacent to each other in the lactose (or lac) operon under the control of a single lac promoter. Hence, Option (d) is correct.

Explanation for incorrect answers:

Option (a) gives that the genes occupy adjacent locations on the E. coli chromosome. The gene sequence, which regulates the metabolism of the lactose, is not located adjacently; they are located on the same DNA (deoxyribonucleic acid) sequence. So, it is an incorrect option.

Option (b) gives that the genes have a similar function. The genes that are involved in the metabolism of the lactose have different functions. They are involved in the secretion of different enzymes. So, it is an incorrect option.

Option (c) gives that the genes are all required for normal cell functioning. These genes are not required for the normal metabolism of the lactose in the cell. The operons are only responsible for the regulation of the genes. So, it is an incorrect option.

Hence, options (a), (b), and (c) are incorrect.

Conclusion

All the genes involved in the metabolism of the lactose are controlled by the same promoter and are called operon.

Answer 7

Chapter 18, Problem 1TYK

Summary Introduction

Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Answer 8

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Genes involved in the metabolism of the lactose are considered to be an operon because they are controlled by the same promoter. The operon is the gene segment, which is controlled by the same promoter.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Explanation/Justification for the correct answer:

Option (d) gives that the genes are all controlled by the same promoter. The entire structural genes that encode enzymes required to use lactose as an energy source lie adjacent to each other in the lactose (or lac) operon under the control of a single lac promoter. Hence, Option (d) is correct.

Explanation for incorrect answers:

Option (a) gives that the genes occupy adjacent locations on the E. coli chromosome. The gene sequence, which regulates the metabolism of the lactose, is not located adjacently; they are located on the same DNA (deoxyribonucleic acid) sequence. So, it is an incorrect option.

Option (b) gives that the genes have a similar function. The genes that are involved in the metabolism of the lactose have different functions. They are involved in the secretion of different enzymes. So, it is an incorrect option.

Option (c) gives that the genes are all required for normal cell functioning. These genes are not required for the normal metabolism of the lactose in the cell. The operons are only responsible for the regulation of the genes. So, it is an incorrect option.

Hence, options (a), (b), and (c) are incorrect.

Answer 12

Conclusion

All the genes involved in the metabolism of the lactose are controlled by the same promoter and are called operon.

Answer 13

Ch. 18 - Prob. 1TYK Ch. 18 - Prob. 2TYK Ch. 18 - Prob. 3TYK Ch. 18 - Prob. 4TYK Ch. 18 - Predict what would happen to regulation of the lac...Ch. 18 - Prob. 8TYU Ch. 18 - Prob. 10TYPSS Ch. 18 - Prob. 11PIAT Ch. 18 - Prob. 12PIAT Ch. 18 - Prob. 13PIAT

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

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Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Answer to Problem 1TYK

Explanation of Solution

Want to see more full solutions like this?

Chapter 18 Solutions

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Concept explainers

Videos

Introduction: The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.

Answer to Problem 1TYK

Explanation of Solution

Want to see more full solutions like this?

Chapter 18 Solutions

Introduction:

The genes that are involved in the regulation of the lactose metabolism are found to be present in the single sequence. These sequences are regulated by a single promoter site.