What is chromatin? a. the histone-containing protein core of the nucleosome b. the 30-nm fiber c. the complex of DNA and proteins found in the nucleus d. the histone and non-histone proteins in eukaryotic nuclei

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Answer 1

Textbook Question

Chapter 19, Problem 1TYK

What is chromatin?

a. the histone-containing protein core of the nucleosome

b. the 30-nm fiber

c. the complex of DNA and proteins found in the nucleus

d. the histone and non-histone proteins in eukaryotic nuclei

Expert Solution & Answer

Summary Introduction

Introduction:

Chromatin is mostly found in the cells, comprising of the DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and protein. There are three levels of chromatin organization, namely, euchromatin, heterochromatin, and high-level DNA packaging of the fiber into the metaphase chromosome.

Answer to Problem 1TYK

Correct answer:

The DNA and histone together form chromatin. The packaging of the double helical structure of DNA is done by the histones.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as the assemblage of proteins and DNA in the nucleus is called chromatin. A gene expresses itself in a number of stages in a cell. These stages are transcription and translation. Prior to transcription, the DNA remains bound with proteins in the nucleus and is called as chromatin. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as the histone that contains the protein core of the nucleosome. The nucleosome is a part of DNA with its proteins, which consists of a small segment of DNA held together by histone proteins. This is a part of chromatin and its repeated units give rise to complete chromatin. So, it is an incorrect option.

Option (b) is given as the 30-nm fiber. The H1 histones interact with one another and with the histone proteins in the adjacent nucleosome providing them a regular position. This structure is called as 30-nm (nanometer) fiber. So, it is an incorrect option.

Option (d) is given as the histone and non-histone proteins present in the nuclei of the eukaryotic cells. The proteins that bind DNA in the nucleus in eukaryotic cells are called histones. They are a part of chromatin. The proteins other than the histone proteins in the chromatin like DNA polymerase, scaffold proteins, polycomb proteins, and heterochromatin protein 1 are called as non-histone proteins. So, it is an incorrect option.

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

Conclusion

The main function of the chromatin is to effectively package the DNA into a small area in order to fit the DNA into the nucleus of the cell. It also protects the structure and sequence of the DNA.

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9. Aerobic respiration of one lipid molecule. The lipid is composed of one glycerol molecule connected to two fatty acid tails. One fatty acid is 12 carbons long and the other fatty acid is 18 carbons long in the figure below. Use the information below to determine how much ATP will be produced from the glycerol part of the lipid. Then, in part B, determine how much ATP is produced from the 2 fatty acids of the lipid. Finally put the NADH and ATP yields together from the glycerol and fatty acids (part A and B) to determine your total number of ATP produced per lipid. Assume no other carbon source is available. 18 carbons fatty acids 12 carbons 9 glycerol A. Glycerol is broken down to glyceraldehyde 3-phosphate, a glycolysis intermediate via the following pathway shown in the figure below. Notice this process costs one ATP but generates one FADH2. Continue generating ATP with glyceraldehyde-3-phosphate using the standard pathway and aerobic respiration. glycerol glycerol-3- phosphate…

Answer 2

Textbook Question

Chapter 19, Problem 1TYK

What is chromatin?

a. the histone-containing protein core of the nucleosome

b. the 30-nm fiber

c. the complex of DNA and proteins found in the nucleus

d. the histone and non-histone proteins in eukaryotic nuclei

Expert Solution & Answer

Summary Introduction

Introduction:

Chromatin is mostly found in the cells, comprising of the DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and protein. There are three levels of chromatin organization, namely, euchromatin, heterochromatin, and high-level DNA packaging of the fiber into the metaphase chromosome.

Answer to Problem 1TYK

Correct answer:

The DNA and histone together form chromatin. The packaging of the double helical structure of DNA is done by the histones.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as the assemblage of proteins and DNA in the nucleus is called chromatin. A gene expresses itself in a number of stages in a cell. These stages are transcription and translation. Prior to transcription, the DNA remains bound with proteins in the nucleus and is called as chromatin. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as the histone that contains the protein core of the nucleosome. The nucleosome is a part of DNA with its proteins, which consists of a small segment of DNA held together by histone proteins. This is a part of chromatin and its repeated units give rise to complete chromatin. So, it is an incorrect option.

Option (b) is given as the 30-nm fiber. The H1 histones interact with one another and with the histone proteins in the adjacent nucleosome providing them a regular position. This structure is called as 30-nm (nanometer) fiber. So, it is an incorrect option.

Option (d) is given as the histone and non-histone proteins present in the nuclei of the eukaryotic cells. The proteins that bind DNA in the nucleus in eukaryotic cells are called histones. They are a part of chromatin. The proteins other than the histone proteins in the chromatin like DNA polymerase, scaffold proteins, polycomb proteins, and heterochromatin protein 1 are called as non-histone proteins. So, it is an incorrect option.

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

Conclusion

The main function of the chromatin is to effectively package the DNA into a small area in order to fit the DNA into the nucleus of the cell. It also protects the structure and sequence of the DNA.

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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 19, Problem 1TYK

What is chromatin?

a. the histone-containing protein core of the nucleosome

b. the 30-nm fiber

c. the complex of DNA and proteins found in the nucleus

d. the histone and non-histone proteins in eukaryotic nuclei

Expert Solution & Answer

Summary Introduction

Introduction:

Chromatin is mostly found in the cells, comprising of the DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and protein. There are three levels of chromatin organization, namely, euchromatin, heterochromatin, and high-level DNA packaging of the fiber into the metaphase chromosome.

Answer to Problem 1TYK

Correct answer:

The DNA and histone together form chromatin. The packaging of the double helical structure of DNA is done by the histones.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as the assemblage of proteins and DNA in the nucleus is called chromatin. A gene expresses itself in a number of stages in a cell. These stages are transcription and translation. Prior to transcription, the DNA remains bound with proteins in the nucleus and is called as chromatin. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as the histone that contains the protein core of the nucleosome. The nucleosome is a part of DNA with its proteins, which consists of a small segment of DNA held together by histone proteins. This is a part of chromatin and its repeated units give rise to complete chromatin. So, it is an incorrect option.

Option (b) is given as the 30-nm fiber. The H1 histones interact with one another and with the histone proteins in the adjacent nucleosome providing them a regular position. This structure is called as 30-nm (nanometer) fiber. So, it is an incorrect option.

Option (d) is given as the histone and non-histone proteins present in the nuclei of the eukaryotic cells. The proteins that bind DNA in the nucleus in eukaryotic cells are called histones. They are a part of chromatin. The proteins other than the histone proteins in the chromatin like DNA polymerase, scaffold proteins, polycomb proteins, and heterochromatin protein 1 are called as non-histone proteins. So, it is an incorrect option.

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

Conclusion

The main function of the chromatin is to effectively package the DNA into a small area in order to fit the DNA into the nucleus of the cell. It also protects the structure and sequence of the DNA.

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Answer 4

Textbook Question

Chapter 19, Problem 1TYK

What is chromatin?

a. the histone-containing protein core of the nucleosome

b. the 30-nm fiber

c. the complex of DNA and proteins found in the nucleus

d. the histone and non-histone proteins in eukaryotic nuclei

Expert Solution & Answer

Summary Introduction

Introduction:

Chromatin is mostly found in the cells, comprising of the DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and protein. There are three levels of chromatin organization, namely, euchromatin, heterochromatin, and high-level DNA packaging of the fiber into the metaphase chromosome.

Answer to Problem 1TYK

Correct answer:

The DNA and histone together form chromatin. The packaging of the double helical structure of DNA is done by the histones.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as the assemblage of proteins and DNA in the nucleus is called chromatin. A gene expresses itself in a number of stages in a cell. These stages are transcription and translation. Prior to transcription, the DNA remains bound with proteins in the nucleus and is called as chromatin. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as the histone that contains the protein core of the nucleosome. The nucleosome is a part of DNA with its proteins, which consists of a small segment of DNA held together by histone proteins. This is a part of chromatin and its repeated units give rise to complete chromatin. So, it is an incorrect option.

Option (b) is given as the 30-nm fiber. The H1 histones interact with one another and with the histone proteins in the adjacent nucleosome providing them a regular position. This structure is called as 30-nm (nanometer) fiber. So, it is an incorrect option.

Option (d) is given as the histone and non-histone proteins present in the nuclei of the eukaryotic cells. The proteins that bind DNA in the nucleus in eukaryotic cells are called histones. They are a part of chromatin. The proteins other than the histone proteins in the chromatin like DNA polymerase, scaffold proteins, polycomb proteins, and heterochromatin protein 1 are called as non-histone proteins. So, it is an incorrect option.

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

Conclusion

The main function of the chromatin is to effectively package the DNA into a small area in order to fit the DNA into the nucleus of the cell. It also protects the structure and sequence of the DNA.

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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:

Chromatin is mostly found in the cells, comprising of the DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and protein. There are three levels of chromatin organization, namely, euchromatin, heterochromatin, and high-level DNA packaging of the fiber into the metaphase chromosome.

Answer to Problem 1TYK

Correct answer:

The DNA and histone together form chromatin. The packaging of the double helical structure of DNA is done by the histones.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as the assemblage of proteins and DNA in the nucleus is called chromatin. A gene expresses itself in a number of stages in a cell. These stages are transcription and translation. Prior to transcription, the DNA remains bound with proteins in the nucleus and is called as chromatin. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as the histone that contains the protein core of the nucleosome. The nucleosome is a part of DNA with its proteins, which consists of a small segment of DNA held together by histone proteins. This is a part of chromatin and its repeated units give rise to complete chromatin. So, it is an incorrect option.

Option (b) is given as the 30-nm fiber. The H1 histones interact with one another and with the histone proteins in the adjacent nucleosome providing them a regular position. This structure is called as 30-nm (nanometer) fiber. So, it is an incorrect option.

Option (d) is given as the histone and non-histone proteins present in the nuclei of the eukaryotic cells. The proteins that bind DNA in the nucleus in eukaryotic cells are called histones. They are a part of chromatin. The proteins other than the histone proteins in the chromatin like DNA polymerase, scaffold proteins, polycomb proteins, and heterochromatin protein 1 are called as non-histone proteins. So, it is an incorrect option.

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

Conclusion

The main function of the chromatin is to effectively package the DNA into a small area in order to fit the DNA into the nucleus of the cell. It also protects the structure and sequence of the DNA.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Chromatin is mostly found in the cells, comprising of the DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and protein. There are three levels of chromatin organization, namely, euchromatin, heterochromatin, and high-level DNA packaging of the fiber into the metaphase chromosome.

Answer to Problem 1TYK

Correct answer:

The DNA and histone together form chromatin. The packaging of the double helical structure of DNA is done by the histones.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as the assemblage of proteins and DNA in the nucleus is called chromatin. A gene expresses itself in a number of stages in a cell. These stages are transcription and translation. Prior to transcription, the DNA remains bound with proteins in the nucleus and is called as chromatin. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as the histone that contains the protein core of the nucleosome. The nucleosome is a part of DNA with its proteins, which consists of a small segment of DNA held together by histone proteins. This is a part of chromatin and its repeated units give rise to complete chromatin. So, it is an incorrect option.

Option (b) is given as the 30-nm fiber. The H1 histones interact with one another and with the histone proteins in the adjacent nucleosome providing them a regular position. This structure is called as 30-nm (nanometer) fiber. So, it is an incorrect option.

Option (d) is given as the histone and non-histone proteins present in the nuclei of the eukaryotic cells. The proteins that bind DNA in the nucleus in eukaryotic cells are called histones. They are a part of chromatin. The proteins other than the histone proteins in the chromatin like DNA polymerase, scaffold proteins, polycomb proteins, and heterochromatin protein 1 are called as non-histone proteins. So, it is an incorrect option.

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

Conclusion

The main function of the chromatin is to effectively package the DNA into a small area in order to fit the DNA into the nucleus of the cell. It also protects the structure and sequence of the DNA.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Chromatin is mostly found in the cells, comprising of the DNA (deoxyribonucleic acid), RNA (ribonucleic acid), and protein. There are three levels of chromatin organization, namely, euchromatin, heterochromatin, and high-level DNA packaging of the fiber into the metaphase chromosome.

Answer 12

Answer to Problem 1TYK

Correct answer:

The DNA and histone together form chromatin. The packaging of the double helical structure of DNA is done by the histones.

Answer 13

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as the assemblage of proteins and DNA in the nucleus is called chromatin. A gene expresses itself in a number of stages in a cell. These stages are transcription and translation. Prior to transcription, the DNA remains bound with proteins in the nucleus and is called as chromatin. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as the histone that contains the protein core of the nucleosome. The nucleosome is a part of DNA with its proteins, which consists of a small segment of DNA held together by histone proteins. This is a part of chromatin and its repeated units give rise to complete chromatin. So, it is an incorrect option.

Option (b) is given as the 30-nm fiber. The H1 histones interact with one another and with the histone proteins in the adjacent nucleosome providing them a regular position. This structure is called as 30-nm (nanometer) fiber. So, it is an incorrect option.

Option (d) is given as the histone and non-histone proteins present in the nuclei of the eukaryotic cells. The proteins that bind DNA in the nucleus in eukaryotic cells are called histones. They are a part of chromatin. The proteins other than the histone proteins in the chromatin like DNA polymerase, scaffold proteins, polycomb proteins, and heterochromatin protein 1 are called as non-histone proteins. So, it is an incorrect option.

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

Answer 14

Conclusion

The main function of the chromatin is to effectively package the DNA into a small area in order to fit the DNA into the nucleus of the cell. It also protects the structure and sequence of the DNA.

Answer 15

Ch. 19 - What is chromatin? a. the histone-containing...Ch. 19 - Prob. 3TYK Ch. 19 - Prob. 2TYK Ch. 19 - Prob. 4TYK Ch. 19 - Prob. 5TYK Ch. 19 - Compare and contrast the items in each pair: (a)...Ch. 19 - What types of proteins bind to promoter-proximal...Ch. 19 - Prob. 10TYU Ch. 19 - Prob. 12TYU Ch. 19 - Prob. 8TYU

What is chromatin? a. the histone-containing protein core of the nucleosome b. the 30-nm fiber c. the complex of DNA and proteins found in the nucleus d. the histone and non-histone proteins in eukaryotic nuclei

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Answer to Problem 1TYK

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