A nucleosome consists of (a) DNA and scaffolding proteins (b) scaffolding proteins and histones (c) DNA and histones (d) DNA, histones, and scaffolding proteins (e) histones only

Question

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Answer 1

Textbook Question

Chapter 10, Problem 1TYU

A nucleosome consists of (a) DNA and scaffolding proteins (b) scaffolding proteins and histones (c) DNA and histones (d) DNA, histones, and scaffolding proteins (e) histones only

Expert Solution & Answer

Summary Introduction

Introduction: A chromosome is a thread-like structure made up of DNA. It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.

Answer to Problem 1TYU

Correct answer: A nucleosome consists of DNA and histones. Hence, the correct answer is option (c).

Explanation of Solution

Reason for the correct answer:

The nucleosome is the basic unit of chromatin structures. The basic unit of each nucleosome contains a bead-like structure that has 146 DNA base pairs wrapped around the disc-shaped core of eight histone molecules. The nucleosomes prevent the DNA from becoming tangled. Histones play an important part in the regulation of gene expression.

Option (c) is given as “DNA and histones”.

The nucleosome consists of DNA and histones.

Hence, the correct answer is option (c).

Reasons for the incorrect answers:

Option (a) is given as “DNA and scaffolding proteins”.

Nucleosomes consist of DNA, but scaffolding proteins are not present in nucleosomes.

Hence, option (a) is incorrect.

Option (b) is given as “scaffolding proteins and histones”.

Scaffolding proteins are modular proteins that play a crucial role in cell-signaling pathways. Scaffolding proteins are not present in nucleosomes. Histones proteins are present in nucleosomes.

Hence, option (b) is incorrect.

Option (d) is given as, “DNA, histones, and scaffolding proteins”.

Nucleosomes consist of DNA and histones, but scaffolding proteins are not present. Hence, option (d) is incorrect.

Option (e) is given as, “histones only”.

Not only histones, but DNA is also present in the nucleosomes.

Hence, option (e) is incorrect.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The nucleosome is the basic unit of chromatin structures that consist of DNA and histones.

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Students have asked these similar questions

In a nucleosome, the DNA is wrapped around(A) histones.(B) ribosomes.(C) polymerase molecules.(D) a thymine dimer.

(a)Discuss or explain the consequences for a cell if the chromatin could not be remodeled. (b) Does the action of the telemorase enzyme contradict the central dogma of molecular biology? why or why not?

Which of the following statements is (are) true? (a) Bacterial ribosomes consist of 40S and 60S subunits. (b) Prokaryotic DNA is normally complexed with histones. (c) Prokaryotic DNA normally exists as a closed circle. (d) Circular DNA is supercoiled.

Answer 2

Textbook Question

Chapter 10, Problem 1TYU

A nucleosome consists of (a) DNA and scaffolding proteins (b) scaffolding proteins and histones (c) DNA and histones (d) DNA, histones, and scaffolding proteins (e) histones only

Expert Solution & Answer

Summary Introduction

Introduction: A chromosome is a thread-like structure made up of DNA. It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.

Answer to Problem 1TYU

Correct answer: A nucleosome consists of DNA and histones. Hence, the correct answer is option (c).

Explanation of Solution

Reason for the correct answer:

The nucleosome is the basic unit of chromatin structures. The basic unit of each nucleosome contains a bead-like structure that has 146 DNA base pairs wrapped around the disc-shaped core of eight histone molecules. The nucleosomes prevent the DNA from becoming tangled. Histones play an important part in the regulation of gene expression.

Option (c) is given as “DNA and histones”.

The nucleosome consists of DNA and histones.

Hence, the correct answer is option (c).

Reasons for the incorrect answers:

Option (a) is given as “DNA and scaffolding proteins”.

Nucleosomes consist of DNA, but scaffolding proteins are not present in nucleosomes.

Hence, option (a) is incorrect.

Option (b) is given as “scaffolding proteins and histones”.

Scaffolding proteins are modular proteins that play a crucial role in cell-signaling pathways. Scaffolding proteins are not present in nucleosomes. Histones proteins are present in nucleosomes.

Hence, option (b) is incorrect.

Option (d) is given as, “DNA, histones, and scaffolding proteins”.

Nucleosomes consist of DNA and histones, but scaffolding proteins are not present. Hence, option (d) is incorrect.

Option (e) is given as, “histones only”.

Not only histones, but DNA is also present in the nucleosomes.

Hence, option (e) is incorrect.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The nucleosome is the basic unit of chromatin structures that consist of DNA and histones.

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Answer 3

Textbook Question

Chapter 10, Problem 1TYU

A nucleosome consists of (a) DNA and scaffolding proteins (b) scaffolding proteins and histones (c) DNA and histones (d) DNA, histones, and scaffolding proteins (e) histones only

Expert Solution & Answer

Summary Introduction

Introduction: A chromosome is a thread-like structure made up of DNA. It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.

Answer to Problem 1TYU

Correct answer: A nucleosome consists of DNA and histones. Hence, the correct answer is option (c).

Explanation of Solution

Reason for the correct answer:

The nucleosome is the basic unit of chromatin structures. The basic unit of each nucleosome contains a bead-like structure that has 146 DNA base pairs wrapped around the disc-shaped core of eight histone molecules. The nucleosomes prevent the DNA from becoming tangled. Histones play an important part in the regulation of gene expression.

Option (c) is given as “DNA and histones”.

The nucleosome consists of DNA and histones.

Hence, the correct answer is option (c).

Reasons for the incorrect answers:

Option (a) is given as “DNA and scaffolding proteins”.

Nucleosomes consist of DNA, but scaffolding proteins are not present in nucleosomes.

Hence, option (a) is incorrect.

Option (b) is given as “scaffolding proteins and histones”.

Scaffolding proteins are modular proteins that play a crucial role in cell-signaling pathways. Scaffolding proteins are not present in nucleosomes. Histones proteins are present in nucleosomes.

Hence, option (b) is incorrect.

Option (d) is given as, “DNA, histones, and scaffolding proteins”.

Nucleosomes consist of DNA and histones, but scaffolding proteins are not present. Hence, option (d) is incorrect.

Option (e) is given as, “histones only”.

Not only histones, but DNA is also present in the nucleosomes.

Hence, option (e) is incorrect.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The nucleosome is the basic unit of chromatin structures that consist of DNA and histones.

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

Answer 4

Textbook Question

Chapter 10, Problem 1TYU

A nucleosome consists of (a) DNA and scaffolding proteins (b) scaffolding proteins and histones (c) DNA and histones (d) DNA, histones, and scaffolding proteins (e) histones only

Expert Solution & Answer

Summary Introduction

Introduction: A chromosome is a thread-like structure made up of DNA. It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.

Answer to Problem 1TYU

Correct answer: A nucleosome consists of DNA and histones. Hence, the correct answer is option (c).

Explanation of Solution

Reason for the correct answer:

The nucleosome is the basic unit of chromatin structures. The basic unit of each nucleosome contains a bead-like structure that has 146 DNA base pairs wrapped around the disc-shaped core of eight histone molecules. The nucleosomes prevent the DNA from becoming tangled. Histones play an important part in the regulation of gene expression.

Option (c) is given as “DNA and histones”.

The nucleosome consists of DNA and histones.

Hence, the correct answer is option (c).

Reasons for the incorrect answers:

Option (a) is given as “DNA and scaffolding proteins”.

Nucleosomes consist of DNA, but scaffolding proteins are not present in nucleosomes.

Hence, option (a) is incorrect.

Option (b) is given as “scaffolding proteins and histones”.

Scaffolding proteins are modular proteins that play a crucial role in cell-signaling pathways. Scaffolding proteins are not present in nucleosomes. Histones proteins are present in nucleosomes.

Hence, option (b) is incorrect.

Option (d) is given as, “DNA, histones, and scaffolding proteins”.

Nucleosomes consist of DNA and histones, but scaffolding proteins are not present. Hence, option (d) is incorrect.

Option (e) is given as, “histones only”.

Not only histones, but DNA is also present in the nucleosomes.

Hence, option (e) is incorrect.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The nucleosome is the basic unit of chromatin structures that consist of DNA and histones.

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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: A chromosome is a thread-like structure made up of DNA. It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.

Answer to Problem 1TYU

Correct answer: A nucleosome consists of DNA and histones. Hence, the correct answer is option (c).

Explanation of Solution

Reason for the correct answer:

The nucleosome is the basic unit of chromatin structures. The basic unit of each nucleosome contains a bead-like structure that has 146 DNA base pairs wrapped around the disc-shaped core of eight histone molecules. The nucleosomes prevent the DNA from becoming tangled. Histones play an important part in the regulation of gene expression.

Option (c) is given as “DNA and histones”.

The nucleosome consists of DNA and histones.

Hence, the correct answer is option (c).

Reasons for the incorrect answers:

Option (a) is given as “DNA and scaffolding proteins”.

Nucleosomes consist of DNA, but scaffolding proteins are not present in nucleosomes.

Hence, option (a) is incorrect.

Option (b) is given as “scaffolding proteins and histones”.

Scaffolding proteins are modular proteins that play a crucial role in cell-signaling pathways. Scaffolding proteins are not present in nucleosomes. Histones proteins are present in nucleosomes.

Hence, option (b) is incorrect.

Option (d) is given as, “DNA, histones, and scaffolding proteins”.

Nucleosomes consist of DNA and histones, but scaffolding proteins are not present. Hence, option (d) is incorrect.

Option (e) is given as, “histones only”.

Not only histones, but DNA is also present in the nucleosomes.

Hence, option (e) is incorrect.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The nucleosome is the basic unit of chromatin structures that consist of DNA and histones.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction: A chromosome is a thread-like structure made up of DNA. It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.

Answer to Problem 1TYU

Correct answer: A nucleosome consists of DNA and histones. Hence, the correct answer is option (c).

Explanation of Solution

Reason for the correct answer:

The nucleosome is the basic unit of chromatin structures. The basic unit of each nucleosome contains a bead-like structure that has 146 DNA base pairs wrapped around the disc-shaped core of eight histone molecules. The nucleosomes prevent the DNA from becoming tangled. Histones play an important part in the regulation of gene expression.

Option (c) is given as “DNA and histones”.

The nucleosome consists of DNA and histones.

Hence, the correct answer is option (c).

Reasons for the incorrect answers:

Option (a) is given as “DNA and scaffolding proteins”.

Nucleosomes consist of DNA, but scaffolding proteins are not present in nucleosomes.

Hence, option (a) is incorrect.

Option (b) is given as “scaffolding proteins and histones”.

Scaffolding proteins are modular proteins that play a crucial role in cell-signaling pathways. Scaffolding proteins are not present in nucleosomes. Histones proteins are present in nucleosomes.

Hence, option (b) is incorrect.

Option (d) is given as, “DNA, histones, and scaffolding proteins”.

Nucleosomes consist of DNA and histones, but scaffolding proteins are not present. Hence, option (d) is incorrect.

Option (e) is given as, “histones only”.

Not only histones, but DNA is also present in the nucleosomes.

Hence, option (e) is incorrect.

Hence, options (a), (b), (d), and (e) are incorrect.

Conclusion

The nucleosome is the basic unit of chromatin structures that consist of DNA and histones.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction: A chromosome is a thread-like structure made up of DNA. It is tightly packed in the nucleus of a cell. Humans normally have 23 pairs of chromosomes.

Answer 12

Answer to Problem 1TYU

Correct answer: A nucleosome consists of DNA and histones. Hence, the correct answer is option (c).

Answer 13

Explanation of Solution

Reason for the correct answer:

The nucleosome is the basic unit of chromatin structures. The basic unit of each nucleosome contains a bead-like structure that has 146 DNA base pairs wrapped around the disc-shaped core of eight histone molecules. The nucleosomes prevent the DNA from becoming tangled. Histones play an important part in the regulation of gene expression.

Option (c) is given as “DNA and histones”.

The nucleosome consists of DNA and histones.

Hence, the correct answer is option (c).

Reasons for the incorrect answers:

Option (a) is given as “DNA and scaffolding proteins”.

Nucleosomes consist of DNA, but scaffolding proteins are not present in nucleosomes.

Hence, option (a) is incorrect.

Option (b) is given as “scaffolding proteins and histones”.

Scaffolding proteins are modular proteins that play a crucial role in cell-signaling pathways. Scaffolding proteins are not present in nucleosomes. Histones proteins are present in nucleosomes.

Hence, option (b) is incorrect.

Option (d) is given as, “DNA, histones, and scaffolding proteins”.

Nucleosomes consist of DNA and histones, but scaffolding proteins are not present. Hence, option (d) is incorrect.

Option (e) is given as, “histones only”.

Not only histones, but DNA is also present in the nucleosomes.

Hence, option (e) is incorrect.

Hence, options (a), (b), (d), and (e) are incorrect.