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

Within a cell, the amount of protein made using a given mRNA molecule depends partly on A. the presence of certain transcription factors. B. the rate at which the mRNA is degraded. C. the degree of DNA methylation. D. the number of introns present in the mRNA. please explain which is correct and incorrect and why

Which of the following statements are true about eukaryotic mRNA?a. The sigma factor is essential for the correct initiationof transcription.b. Processing of the nascent mRNA may begin beforeits transcription is complete.c. Processing takes place in the cytoplasm.d. Termination is accomplished by the use of a hairpinloop or the use of the rho factor.e. Many RNAs can be transcribed simultaneously fromone DNA template

Arrange the statements in their proper order by writing the corresponding letter (e.g. A) for each statement in the space provided below. A. The single-stranded RNA would complement the target RNA. B. Gene expression is inactivated once the mRNA is no longer accessible for translation. C. The risk-induced silencing complex which is composed of RNA and protein subunits is formed. D. Double-stranded, non-coding RNA is cleaved by Dicer. E. The mRNA can be cleaved or remain bound by the RISC. 1. 2. 3. 4. 5.

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.

Answer 15

Ch. 16 - In prokaryotes, control of gene expression usually...Ch. 16 - Prob. 2U Ch. 16 - In E. coli, induction in the lac operon and...Ch. 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. 1A Ch. 16 - Specific transcription factors in eukaryotes...Ch. 16 - Repression in the trp operon and induction in the...

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.

Solution Summary: The author explains that genes are the sequence of nucleotides, which codes for the function in a genome.

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