In prokaryotes, control of gene expression usually occurs at the a. splicing of pre-mRNA into mature mRNA. b. initiation of translation. c. initiation of transcription. d. All of the choices are correct.

Question

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Answer 1

Textbook Question

Chapter 16, Problem 1U

In prokaryotes, control of gene expression usually occurs at the

a. splicing of pre-mRNA into mature mRNA.

b. initiation of translation.

c. initiation of transcription.

d. All of the choices are correct.

Expert Solution & Answer

Summary Introduction

Introduction:

The genes can be defined as the sequence of the nucleotides, which codes for the function in a genome. It could be DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). There are certain genes which express continuously in all the cells, these are known as the housekeeping genes. The expression of other kinds of genes is regulated.

Answer to Problem 1U

Correct answer:

In prokaryotes, the expression of the gene is usually regulated at the initiation of transcription. Therefore, option c is correct.

Explanation of Solution

Reasons for the correct statement:

The regulation of the expression of the genes is regulated at different stages. The genetic information from the DNA is passed on to the mRNA (messenger ribonucleic acid), which is then passed onto the proteins. The expression of the gene is regulated at the initiation of the transcription. This step of regulation is most studied.

Option c is given as “initiation of transcription”.

As, “the regulation of the gene expression in prokaryotes occurs at the initiation of the transcription”, is the right answer.

Hence, option c is correct.

Reasons for the incorrect statements:

Option a is given as “splicing of pre- mRNA into the mature mRNA ”.

The splicing is the process through which the heterogeneous or pre- mRNA gets transformed into the mature mRNA with the removal of the introns. This is not a regulatory mechanism. So, it is a wrong answer.

Option b is given as “initiation of translation”.

In some of the prokaryotes, the control of the gene expression occurs at the initiation of the translation; however, it is not very common. So, it is a wrong answer.

Option d is given as “all of the choices are correct”.

The splicing is not the regulatory mechanism and the regulation at the initiation of the translation occurs in some genes. So, it is a wrong answer.

Hence, the options a, b, and d are incorrect.

Conclusion

The regulation of the gene takes place at the level of initiation of transcription mostly. This kind of regulation is the most studied. The regulation of the gene allows the differential expression of the proteins.

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Students have asked these similar questions

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

Textbook Question

Chapter 16, Problem 1U

In prokaryotes, control of gene expression usually occurs at the

a. splicing of pre-mRNA into mature mRNA.

b. initiation of translation.

c. initiation of transcription.

d. All of the choices are correct.

Expert Solution & Answer

Summary Introduction

Introduction:

The genes can be defined as the sequence of the nucleotides, which codes for the function in a genome. It could be DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). There are certain genes which express continuously in all the cells, these are known as the housekeeping genes. The expression of other kinds of genes is regulated.

Answer to Problem 1U

Correct answer:

In prokaryotes, the expression of the gene is usually regulated at the initiation of transcription. Therefore, option c is correct.

Explanation of Solution

Reasons for the correct statement:

The regulation of the expression of the genes is regulated at different stages. The genetic information from the DNA is passed on to the mRNA (messenger ribonucleic acid), which is then passed onto the proteins. The expression of the gene is regulated at the initiation of the transcription. This step of regulation is most studied.

Option c is given as “initiation of transcription”.

As, “the regulation of the gene expression in prokaryotes occurs at the initiation of the transcription”, is the right answer.

Hence, option c is correct.

Reasons for the incorrect statements:

Option a is given as “splicing of pre- mRNA into the mature mRNA ”.

The splicing is the process through which the heterogeneous or pre- mRNA gets transformed into the mature mRNA with the removal of the introns. This is not a regulatory mechanism. So, it is a wrong answer.

Option b is given as “initiation of translation”.

In some of the prokaryotes, the control of the gene expression occurs at the initiation of the translation; however, it is not very common. So, it is a wrong answer.

Option d is given as “all of the choices are correct”.

The splicing is not the regulatory mechanism and the regulation at the initiation of the translation occurs in some genes. So, it is a wrong answer.

Hence, the options a, b, and d are incorrect.

Conclusion

The regulation of the gene takes place at the level of initiation of transcription mostly. This kind of regulation is the most studied. The regulation of the gene allows the differential expression of the proteins.

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

Answer 3

Textbook Question

Chapter 16, Problem 1U

In prokaryotes, control of gene expression usually occurs at the

a. splicing of pre-mRNA into mature mRNA.

b. initiation of translation.

c. initiation of transcription.

d. All of the choices are correct.

Expert Solution & Answer

Summary Introduction

Introduction:

The genes can be defined as the sequence of the nucleotides, which codes for the function in a genome. It could be DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). There are certain genes which express continuously in all the cells, these are known as the housekeeping genes. The expression of other kinds of genes is regulated.

Answer to Problem 1U

Correct answer:

In prokaryotes, the expression of the gene is usually regulated at the initiation of transcription. Therefore, option c is correct.

Explanation of Solution

Reasons for the correct statement:

The regulation of the expression of the genes is regulated at different stages. The genetic information from the DNA is passed on to the mRNA (messenger ribonucleic acid), which is then passed onto the proteins. The expression of the gene is regulated at the initiation of the transcription. This step of regulation is most studied.

Option c is given as “initiation of transcription”.

As, “the regulation of the gene expression in prokaryotes occurs at the initiation of the transcription”, is the right answer.

Hence, option c is correct.

Reasons for the incorrect statements:

Option a is given as “splicing of pre- mRNA into the mature mRNA ”.

The splicing is the process through which the heterogeneous or pre- mRNA gets transformed into the mature mRNA with the removal of the introns. This is not a regulatory mechanism. So, it is a wrong answer.

Option b is given as “initiation of translation”.

In some of the prokaryotes, the control of the gene expression occurs at the initiation of the translation; however, it is not very common. So, it is a wrong answer.

Option d is given as “all of the choices are correct”.

The splicing is not the regulatory mechanism and the regulation at the initiation of the translation occurs in some genes. So, it is a wrong answer.

Hence, the options a, b, and d are incorrect.

Conclusion

The regulation of the gene takes place at the level of initiation of transcription mostly. This kind of regulation is the most studied. The regulation of the gene allows the differential expression of the proteins.

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 4

Textbook Question

Chapter 16, Problem 1U

In prokaryotes, control of gene expression usually occurs at the

a. splicing of pre-mRNA into mature mRNA.

b. initiation of translation.

c. initiation of transcription.

d. All of the choices are correct.

Expert Solution & Answer

Summary Introduction

Introduction:

The genes can be defined as the sequence of the nucleotides, which codes for the function in a genome. It could be DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). There are certain genes which express continuously in all the cells, these are known as the housekeeping genes. The expression of other kinds of genes is regulated.

Answer to Problem 1U

Correct answer:

In prokaryotes, the expression of the gene is usually regulated at the initiation of transcription. Therefore, option c is correct.

Explanation of Solution

Reasons for the correct statement:

The regulation of the expression of the genes is regulated at different stages. The genetic information from the DNA is passed on to the mRNA (messenger ribonucleic acid), which is then passed onto the proteins. The expression of the gene is regulated at the initiation of the transcription. This step of regulation is most studied.

Option c is given as “initiation of transcription”.

As, “the regulation of the gene expression in prokaryotes occurs at the initiation of the transcription”, is the right answer.

Hence, option c is correct.

Reasons for the incorrect statements:

Option a is given as “splicing of pre- mRNA into the mature mRNA ”.

The splicing is the process through which the heterogeneous or pre- mRNA gets transformed into the mature mRNA with the removal of the introns. This is not a regulatory mechanism. So, it is a wrong answer.

Option b is given as “initiation of translation”.

In some of the prokaryotes, the control of the gene expression occurs at the initiation of the translation; however, it is not very common. So, it is a wrong answer.

Option d is given as “all of the choices are correct”.

The splicing is not the regulatory mechanism and the regulation at the initiation of the translation occurs in some genes. So, it is a wrong answer.

Hence, the options a, b, and d are incorrect.

Conclusion

The regulation of the gene takes place at the level of initiation of transcription mostly. This kind of regulation is the most studied. The regulation of the gene allows the differential expression of the proteins.

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

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

The genes can be defined as the sequence of the nucleotides, which codes for the function in a genome. It could be DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). There are certain genes which express continuously in all the cells, these are known as the housekeeping genes. The expression of other kinds of genes is regulated.

Answer to Problem 1U

Correct answer:

In prokaryotes, the expression of the gene is usually regulated at the initiation of transcription. Therefore, option c is correct.

Explanation of Solution

Reasons for the correct statement:

The regulation of the expression of the genes is regulated at different stages. The genetic information from the DNA is passed on to the mRNA (messenger ribonucleic acid), which is then passed onto the proteins. The expression of the gene is regulated at the initiation of the transcription. This step of regulation is most studied.

Option c is given as “initiation of transcription”.

As, “the regulation of the gene expression in prokaryotes occurs at the initiation of the transcription”, is the right answer.

Hence, option c is correct.

Reasons for the incorrect statements:

Option a is given as “splicing of pre- mRNA into the mature mRNA ”.

The splicing is the process through which the heterogeneous or pre- mRNA gets transformed into the mature mRNA with the removal of the introns. This is not a regulatory mechanism. So, it is a wrong answer.

Option b is given as “initiation of translation”.

In some of the prokaryotes, the control of the gene expression occurs at the initiation of the translation; however, it is not very common. So, it is a wrong answer.

Option d is given as “all of the choices are correct”.

The splicing is not the regulatory mechanism and the regulation at the initiation of the translation occurs in some genes. So, it is a wrong answer.

Hence, the options a, b, and d are incorrect.

Conclusion

The regulation of the gene takes place at the level of initiation of transcription mostly. This kind of regulation is the most studied. The regulation of the gene allows the differential expression of the proteins.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

The genes can be defined as the sequence of the nucleotides, which codes for the function in a genome. It could be DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). There are certain genes which express continuously in all the cells, these are known as the housekeeping genes. The expression of other kinds of genes is regulated.

Answer to Problem 1U

Correct answer:

In prokaryotes, the expression of the gene is usually regulated at the initiation of transcription. Therefore, option c is correct.

Explanation of Solution

Reasons for the correct statement:

The regulation of the expression of the genes is regulated at different stages. The genetic information from the DNA is passed on to the mRNA (messenger ribonucleic acid), which is then passed onto the proteins. The expression of the gene is regulated at the initiation of the transcription. This step of regulation is most studied.

Option c is given as “initiation of transcription”.

As, “the regulation of the gene expression in prokaryotes occurs at the initiation of the transcription”, is the right answer.

Hence, option c is correct.

Reasons for the incorrect statements:

Option a is given as “splicing of pre- mRNA into the mature mRNA ”.

The splicing is the process through which the heterogeneous or pre- mRNA gets transformed into the mature mRNA with the removal of the introns. This is not a regulatory mechanism. So, it is a wrong answer.

Option b is given as “initiation of translation”.

In some of the prokaryotes, the control of the gene expression occurs at the initiation of the translation; however, it is not very common. So, it is a wrong answer.

Option d is given as “all of the choices are correct”.

The splicing is not the regulatory mechanism and the regulation at the initiation of the translation occurs in some genes. So, it is a wrong answer.

Hence, the options a, b, and d are incorrect.

Conclusion

The regulation of the gene takes place at the level of initiation of transcription mostly. This kind of regulation is the most studied. The regulation of the gene allows the differential expression of the proteins.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

The genes can be defined as the sequence of the nucleotides, which codes for the function in a genome. It could be DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). There are certain genes which express continuously in all the cells, these are known as the housekeeping genes. The expression of other kinds of genes is regulated.

Answer 12

Answer to Problem 1U

Correct answer:

In prokaryotes, the expression of the gene is usually regulated at the initiation of transcription. Therefore, option c is correct.

Answer 13

Explanation of Solution

Reasons for the correct statement:

The regulation of the expression of the genes is regulated at different stages. The genetic information from the DNA is passed on to the mRNA (messenger ribonucleic acid), which is then passed onto the proteins. The expression of the gene is regulated at the initiation of the transcription. This step of regulation is most studied.

Option c is given as “initiation of transcription”.

As, “the regulation of the gene expression in prokaryotes occurs at the initiation of the transcription”, is the right answer.

Hence, option c is correct.

Reasons for the incorrect statements:

Option a is given as “splicing of pre- mRNA into the mature mRNA ”.

The splicing is the process through which the heterogeneous or pre- mRNA gets transformed into the mature mRNA with the removal of the introns. This is not a regulatory mechanism. So, it is a wrong answer.

Option b is given as “initiation of translation”.

In some of the prokaryotes, the control of the gene expression occurs at the initiation of the translation; however, it is not very common. So, it is a wrong answer.

Option d is given as “all of the choices are correct”.

The splicing is not the regulatory mechanism and the regulation at the initiation of the translation occurs in some genes. So, it is a wrong answer.

Hence, the options a, b, and d are incorrect.

Answer 14

Conclusion

The regulation of the gene takes place at the level of initiation of transcription mostly. This kind of regulation is the most studied. The regulation of the gene allows the differential expression of the proteins.