The transmission of traits into next generation occurs as heritable information in the form of DNA. The monomers that make up the DNA are nucleotides. There are four different nucleotides. These are adenine (A), thymine (T), cytosine (C), and guanine (G). In a double stranded DNA helix, A pair with T and C pair with G. A nucleotide is composed of a deoxyribose sugar, a nitrogenous base and a phosphate group. The nucleotides are covalently linked together in a chain through sugars and phosphates. This forms a backbone alternating with sugar-phosphate-sugar-phosphate. The structure and function of DNA are correlated with each other and are based on the base pair composition, and their arrangement. DNA strands are anti-parallel.

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Answer 1

Question

Chapter 5, Problem 1Q

Summary Introduction

Introduction: The transmission of traits into next generation occurs as heritable information in the form of DNA. The monomers that make up the DNA are nucleotides. There are four different nucleotides. These are adenine (A), thymine (T), cytosine (C), and guanine (G). In a double stranded DNA helix, A pair with T and C pair with G. A nucleotide is composed of a deoxyribose sugar, a nitrogenous base and a phosphate group. The nucleotides are covalently linked together in a chain through sugars and phosphates. This forms a backbone alternating with sugar-phosphate-sugar-phosphate. The structure and function of DNA are correlated with each other and are based on the base pair composition, and their arrangement. DNA strands are anti-parallel.

Expert Solution & Answer

Answer to Problem 1Q

Correct answer: Option B. is given as “G-C base pairs are more stable than A-T base pairs”.

Therefore, option B. is correct.

Explanation of Solution

Reason for the correct statement:

A-T base pairs are connected by two hydrogen bonds whereas G-C base pairs are connected by three hydrogen bonds. The breaking of three hydrogen bonds would require more energy than the breaking of two hydrogen bonds. So, G-C base pairs would be more stable than the A-T base pairs.

Hence, option B. is correct.

Reason for the incorrect statement:

Option A. is given as “A DNA strand has a polarity because its two ends contain different bases”. But, the polarity of the DNA strands is due to its phosphate group and hydroxyl group in its sugar-phosphate backbone.

So, option A. is incorrect.

Conclusion

The statement “G-C base pairs are more stable than A-T base pairs” is correct.

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Answer 2

Question

Chapter 5, Problem 1Q

Summary Introduction

Introduction: The transmission of traits into next generation occurs as heritable information in the form of DNA. The monomers that make up the DNA are nucleotides. There are four different nucleotides. These are adenine (A), thymine (T), cytosine (C), and guanine (G). In a double stranded DNA helix, A pair with T and C pair with G. A nucleotide is composed of a deoxyribose sugar, a nitrogenous base and a phosphate group. The nucleotides are covalently linked together in a chain through sugars and phosphates. This forms a backbone alternating with sugar-phosphate-sugar-phosphate. The structure and function of DNA are correlated with each other and are based on the base pair composition, and their arrangement. DNA strands are anti-parallel.

Expert Solution & Answer

Answer to Problem 1Q

Correct answer: Option B. is given as “G-C base pairs are more stable than A-T base pairs”.

Therefore, option B. is correct.

Explanation of Solution

Reason for the correct statement:

A-T base pairs are connected by two hydrogen bonds whereas G-C base pairs are connected by three hydrogen bonds. The breaking of three hydrogen bonds would require more energy than the breaking of two hydrogen bonds. So, G-C base pairs would be more stable than the A-T base pairs.

Hence, option B. is correct.

Reason for the incorrect statement:

Option A. is given as “A DNA strand has a polarity because its two ends contain different bases”. But, the polarity of the DNA strands is due to its phosphate group and hydroxyl group in its sugar-phosphate backbone.

So, option A. is incorrect.

Conclusion

The statement “G-C base pairs are more stable than A-T base pairs” is correct.

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Answer 3

Question

Chapter 5, Problem 1Q

Summary Introduction

Introduction: The transmission of traits into next generation occurs as heritable information in the form of DNA. The monomers that make up the DNA are nucleotides. There are four different nucleotides. These are adenine (A), thymine (T), cytosine (C), and guanine (G). In a double stranded DNA helix, A pair with T and C pair with G. A nucleotide is composed of a deoxyribose sugar, a nitrogenous base and a phosphate group. The nucleotides are covalently linked together in a chain through sugars and phosphates. This forms a backbone alternating with sugar-phosphate-sugar-phosphate. The structure and function of DNA are correlated with each other and are based on the base pair composition, and their arrangement. DNA strands are anti-parallel.

Expert Solution & Answer

Answer to Problem 1Q

Correct answer: Option B. is given as “G-C base pairs are more stable than A-T base pairs”.

Therefore, option B. is correct.

Explanation of Solution

Reason for the correct statement:

A-T base pairs are connected by two hydrogen bonds whereas G-C base pairs are connected by three hydrogen bonds. The breaking of three hydrogen bonds would require more energy than the breaking of two hydrogen bonds. So, G-C base pairs would be more stable than the A-T base pairs.

Hence, option B. is correct.

Reason for the incorrect statement:

Option A. is given as “A DNA strand has a polarity because its two ends contain different bases”. But, the polarity of the DNA strands is due to its phosphate group and hydroxyl group in its sugar-phosphate backbone.

So, option A. is incorrect.

Conclusion

The statement “G-C base pairs are more stable than A-T base pairs” is correct.

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Answer 4

Question

Chapter 5, Problem 1Q

Summary Introduction

Introduction: The transmission of traits into next generation occurs as heritable information in the form of DNA. The monomers that make up the DNA are nucleotides. There are four different nucleotides. These are adenine (A), thymine (T), cytosine (C), and guanine (G). In a double stranded DNA helix, A pair with T and C pair with G. A nucleotide is composed of a deoxyribose sugar, a nitrogenous base and a phosphate group. The nucleotides are covalently linked together in a chain through sugars and phosphates. This forms a backbone alternating with sugar-phosphate-sugar-phosphate. The structure and function of DNA are correlated with each other and are based on the base pair composition, and their arrangement. DNA strands are anti-parallel.

Expert Solution & Answer

Answer to Problem 1Q

Correct answer: Option B. is given as “G-C base pairs are more stable than A-T base pairs”.

Therefore, option B. is correct.

Explanation of Solution

Reason for the correct statement:

A-T base pairs are connected by two hydrogen bonds whereas G-C base pairs are connected by three hydrogen bonds. The breaking of three hydrogen bonds would require more energy than the breaking of two hydrogen bonds. So, G-C base pairs would be more stable than the A-T base pairs.

Hence, option B. is correct.

Reason for the incorrect statement:

Option A. is given as “A DNA strand has a polarity because its two ends contain different bases”. But, the polarity of the DNA strands is due to its phosphate group and hydroxyl group in its sugar-phosphate backbone.

So, option A. is incorrect.

Conclusion

The statement “G-C base pairs are more stable than A-T base pairs” is correct.

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

Answer 5

Chapter 5, Problem 1Q

Summary Introduction

Introduction: The transmission of traits into next generation occurs as heritable information in the form of DNA. The monomers that make up the DNA are nucleotides. There are four different nucleotides. These are adenine (A), thymine (T), cytosine (C), and guanine (G). In a double stranded DNA helix, A pair with T and C pair with G. A nucleotide is composed of a deoxyribose sugar, a nitrogenous base and a phosphate group. The nucleotides are covalently linked together in a chain through sugars and phosphates. This forms a backbone alternating with sugar-phosphate-sugar-phosphate. The structure and function of DNA are correlated with each other and are based on the base pair composition, and their arrangement. DNA strands are anti-parallel.

Expert Solution & Answer

Answer to Problem 1Q

Correct answer: Option B. is given as “G-C base pairs are more stable than A-T base pairs”.

Therefore, option B. is correct.

Explanation of Solution

Reason for the correct statement:

A-T base pairs are connected by two hydrogen bonds whereas G-C base pairs are connected by three hydrogen bonds. The breaking of three hydrogen bonds would require more energy than the breaking of two hydrogen bonds. So, G-C base pairs would be more stable than the A-T base pairs.

Hence, option B. is correct.

Reason for the incorrect statement:

Option A. is given as “A DNA strand has a polarity because its two ends contain different bases”. But, the polarity of the DNA strands is due to its phosphate group and hydroxyl group in its sugar-phosphate backbone.

So, option A. is incorrect.

Conclusion

The statement “G-C base pairs are more stable than A-T base pairs” is correct.

Answer 6

Chapter 5, Problem 1Q

Summary Introduction

Introduction: The transmission of traits into next generation occurs as heritable information in the form of DNA. The monomers that make up the DNA are nucleotides. There are four different nucleotides. These are adenine (A), thymine (T), cytosine (C), and guanine (G). In a double stranded DNA helix, A pair with T and C pair with G. A nucleotide is composed of a deoxyribose sugar, a nitrogenous base and a phosphate group. The nucleotides are covalently linked together in a chain through sugars and phosphates. This forms a backbone alternating with sugar-phosphate-sugar-phosphate. The structure and function of DNA are correlated with each other and are based on the base pair composition, and their arrangement. DNA strands are anti-parallel.

Expert Solution & Answer

Answer to Problem 1Q

Correct answer: Option B. is given as “G-C base pairs are more stable than A-T base pairs”.

Therefore, option B. is correct.

Explanation of Solution

Reason for the correct statement:

A-T base pairs are connected by two hydrogen bonds whereas G-C base pairs are connected by three hydrogen bonds. The breaking of three hydrogen bonds would require more energy than the breaking of two hydrogen bonds. So, G-C base pairs would be more stable than the A-T base pairs.

Hence, option B. is correct.

Reason for the incorrect statement:

Option A. is given as “A DNA strand has a polarity because its two ends contain different bases”. But, the polarity of the DNA strands is due to its phosphate group and hydroxyl group in its sugar-phosphate backbone.

So, option A. is incorrect.

Conclusion

The statement “G-C base pairs are more stable than A-T base pairs” is correct.

Answer 7

Chapter 5, Problem 1Q

Summary Introduction

Introduction: The transmission of traits into next generation occurs as heritable information in the form of DNA. The monomers that make up the DNA are nucleotides. There are four different nucleotides. These are adenine (A), thymine (T), cytosine (C), and guanine (G). In a double stranded DNA helix, A pair with T and C pair with G. A nucleotide is composed of a deoxyribose sugar, a nitrogenous base and a phosphate group. The nucleotides are covalently linked together in a chain through sugars and phosphates. This forms a backbone alternating with sugar-phosphate-sugar-phosphate. The structure and function of DNA are correlated with each other and are based on the base pair composition, and their arrangement. DNA strands are anti-parallel.

Answer 8

Expert Solution & Answer

Answer to Problem 1Q

Correct answer: Option B. is given as “G-C base pairs are more stable than A-T base pairs”.

Therefore, option B. is correct.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Reason for the correct statement:

A-T base pairs are connected by two hydrogen bonds whereas G-C base pairs are connected by three hydrogen bonds. The breaking of three hydrogen bonds would require more energy than the breaking of two hydrogen bonds. So, G-C base pairs would be more stable than the A-T base pairs.

Hence, option B. is correct.

Reason for the incorrect statement:

Option A. is given as “A DNA strand has a polarity because its two ends contain different bases”. But, the polarity of the DNA strands is due to its phosphate group and hydroxyl group in its sugar-phosphate backbone.

So, option A. is incorrect.