The aspects of DNA structure which provide stability to the molecule upto thousands of years. Introduction: The stability of DNA is dependent on various features and structural composition of DNA. The intermolecular interactions, double helical structure base stacking, and surrounding water play a major role in the stability of DNA.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 10, Problem 17AQP

(1)

Summary Introduction

To explain:

The aspects of DNA structure which provide stability to the molecule upto thousands of years.

Introduction:

The stability of DNA is dependent on various features and structural composition of DNA. The intermolecular interactions, double helical structure base stacking, and surrounding water play a major role in the stability of DNA.

(1)

Expert Solution

Explanation of Solution

The DNA is a biomolecule and the reasons of its long term stability are:

1. The structural and chemical stability of DNA comes from the linkage between nucleotide bases and deoxyribose sugar, the linkage is termed as phosphodiester linkage. The phosphodiester bonds are not easy to break by hydrolysis so, these bonds are considered as strong attachments.

2. Base stacking is a major reason of DNA stability. Two polynucleotide strands are attached to one another in the form of stack because of the complementary nature of nucleotide bases.

3. Hydrogen bonds are found between two successive nucleotides, though hydrogen bonds are weak bonds, but large amount of bonds present on two strands of DNA make its chemical and structural condition stable.

4. The nitrogenous bases are complementary to each other so, nitrogenous bases present on two separate strands get bind strongly and form double helical structure of DNA to make it stable.

5. Lacking a hydroxyl group at 2^nd carbon also provide stability to DNA; hydroxyl group tends to react fast. The ribose sugar of DNA contains only one hydroxyl group at 5^th position which is engaged in the formation of phosphodiester bonds with phosphate group. The absence of spare hydroxyl groups provides immunity to DNA towards several chemical reactions.

(2)

Summary Introduction

To explain:

The stability of RNA is less in comparison to DNA.

Introduction:

RNA is a polynucleotide and it is the genetic material of various viruses. RNA and DNA are different from each other in composition as well as in the structure. RNA is less stable than DNA due to these structural and compositional differences.

(2)

Expert Solution

Explanation of Solution

The reasons of RNA being less stable than DNA are:

1. RNA is single stranded while DNA is a double stranded helical structure. The double helical structure of DNA is rich in hydrogen bonds, being single stranded, RNA does not possess large number of hydrogen bonding. Large number of hydrogen bonds need high amount of energy to break the bonds.

2. Presence of hydroxyl group on the 2^nd carbon of ribose sugar of RNA makes it less stable than DNA, as hydroxyl group is very reactive and can undergo hydrolysis easily.

3. In RNA, uracil is found in the place of thymine, thymine contains a methyl group which supports the repairing of damaged DNA. Uracil is formed by the deamination of cytosine. The rapid deamination of cytosine will decrease guanine and cytosine base pairing.

Conclusion

DNA is a stable molecule due to the presence of large number of hydrogen bonds, complementary nitrogenous bases present on two separate strands form hydrogen bonds and provide a double helical structure to DNA, absence of hydroxyl group in the sugar part of DNA prevents it from hydrolysis, base stacking also plays a major role in the DNA stability. RNA is less stable than DNA because of being single stranded and the presence of hydroxyl group on the 2^nd carbon of sugar makes it susceptible tohydrolysis. Presence of uracil in the place of thymine is a disadvantage of RNA.

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!

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

Question

Chapter 10, Problem 17AQP

(1)

Summary Introduction

To explain:

The aspects of DNA structure which provide stability to the molecule upto thousands of years.

Introduction:

The stability of DNA is dependent on various features and structural composition of DNA. The intermolecular interactions, double helical structure base stacking, and surrounding water play a major role in the stability of DNA.

(1)

Expert Solution

Explanation of Solution

The DNA is a biomolecule and the reasons of its long term stability are:

1. The structural and chemical stability of DNA comes from the linkage between nucleotide bases and deoxyribose sugar, the linkage is termed as phosphodiester linkage. The phosphodiester bonds are not easy to break by hydrolysis so, these bonds are considered as strong attachments.

2. Base stacking is a major reason of DNA stability. Two polynucleotide strands are attached to one another in the form of stack because of the complementary nature of nucleotide bases.

3. Hydrogen bonds are found between two successive nucleotides, though hydrogen bonds are weak bonds, but large amount of bonds present on two strands of DNA make its chemical and structural condition stable.

4. The nitrogenous bases are complementary to each other so, nitrogenous bases present on two separate strands get bind strongly and form double helical structure of DNA to make it stable.

5. Lacking a hydroxyl group at 2^nd carbon also provide stability to DNA; hydroxyl group tends to react fast. The ribose sugar of DNA contains only one hydroxyl group at 5^th position which is engaged in the formation of phosphodiester bonds with phosphate group. The absence of spare hydroxyl groups provides immunity to DNA towards several chemical reactions.

(2)

Summary Introduction

To explain:

The stability of RNA is less in comparison to DNA.

Introduction:

RNA is a polynucleotide and it is the genetic material of various viruses. RNA and DNA are different from each other in composition as well as in the structure. RNA is less stable than DNA due to these structural and compositional differences.

(2)

Expert Solution

Explanation of Solution

The reasons of RNA being less stable than DNA are:

1. RNA is single stranded while DNA is a double stranded helical structure. The double helical structure of DNA is rich in hydrogen bonds, being single stranded, RNA does not possess large number of hydrogen bonding. Large number of hydrogen bonds need high amount of energy to break the bonds.

2. Presence of hydroxyl group on the 2^nd carbon of ribose sugar of RNA makes it less stable than DNA, as hydroxyl group is very reactive and can undergo hydrolysis easily.

3. In RNA, uracil is found in the place of thymine, thymine contains a methyl group which supports the repairing of damaged DNA. Uracil is formed by the deamination of cytosine. The rapid deamination of cytosine will decrease guanine and cytosine base pairing.

Conclusion

DNA is a stable molecule due to the presence of large number of hydrogen bonds, complementary nitrogenous bases present on two separate strands form hydrogen bonds and provide a double helical structure to DNA, absence of hydroxyl group in the sugar part of DNA prevents it from hydrolysis, base stacking also plays a major role in the DNA stability. RNA is less stable than DNA because of being single stranded and the presence of hydroxyl group on the 2^nd carbon of sugar makes it susceptible tohydrolysis. Presence of uracil in the place of thymine is a disadvantage of RNA.

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 3

Question

Chapter 10, Problem 17AQP

(1)

Summary Introduction

To explain:

The aspects of DNA structure which provide stability to the molecule upto thousands of years.

Introduction:

The stability of DNA is dependent on various features and structural composition of DNA. The intermolecular interactions, double helical structure base stacking, and surrounding water play a major role in the stability of DNA.

(1)

Expert Solution

Explanation of Solution

The DNA is a biomolecule and the reasons of its long term stability are:

1. The structural and chemical stability of DNA comes from the linkage between nucleotide bases and deoxyribose sugar, the linkage is termed as phosphodiester linkage. The phosphodiester bonds are not easy to break by hydrolysis so, these bonds are considered as strong attachments.

2. Base stacking is a major reason of DNA stability. Two polynucleotide strands are attached to one another in the form of stack because of the complementary nature of nucleotide bases.

3. Hydrogen bonds are found between two successive nucleotides, though hydrogen bonds are weak bonds, but large amount of bonds present on two strands of DNA make its chemical and structural condition stable.

4. The nitrogenous bases are complementary to each other so, nitrogenous bases present on two separate strands get bind strongly and form double helical structure of DNA to make it stable.

5. Lacking a hydroxyl group at 2^nd carbon also provide stability to DNA; hydroxyl group tends to react fast. The ribose sugar of DNA contains only one hydroxyl group at 5^th position which is engaged in the formation of phosphodiester bonds with phosphate group. The absence of spare hydroxyl groups provides immunity to DNA towards several chemical reactions.

(2)

Summary Introduction

To explain:

The stability of RNA is less in comparison to DNA.

Introduction:

RNA is a polynucleotide and it is the genetic material of various viruses. RNA and DNA are different from each other in composition as well as in the structure. RNA is less stable than DNA due to these structural and compositional differences.

(2)

Expert Solution

Explanation of Solution

The reasons of RNA being less stable than DNA are:

1. RNA is single stranded while DNA is a double stranded helical structure. The double helical structure of DNA is rich in hydrogen bonds, being single stranded, RNA does not possess large number of hydrogen bonding. Large number of hydrogen bonds need high amount of energy to break the bonds.

2. Presence of hydroxyl group on the 2^nd carbon of ribose sugar of RNA makes it less stable than DNA, as hydroxyl group is very reactive and can undergo hydrolysis easily.

3. In RNA, uracil is found in the place of thymine, thymine contains a methyl group which supports the repairing of damaged DNA. Uracil is formed by the deamination of cytosine. The rapid deamination of cytosine will decrease guanine and cytosine base pairing.

Conclusion

DNA is a stable molecule due to the presence of large number of hydrogen bonds, complementary nitrogenous bases present on two separate strands form hydrogen bonds and provide a double helical structure to DNA, absence of hydroxyl group in the sugar part of DNA prevents it from hydrolysis, base stacking also plays a major role in the DNA stability. RNA is less stable than DNA because of being single stranded and the presence of hydroxyl group on the 2^nd carbon of sugar makes it susceptible tohydrolysis. Presence of uracil in the place of thymine is a disadvantage of RNA.

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

Question

Chapter 10, Problem 17AQP

(1)

Summary Introduction

To explain:

The aspects of DNA structure which provide stability to the molecule upto thousands of years.

Introduction:

The stability of DNA is dependent on various features and structural composition of DNA. The intermolecular interactions, double helical structure base stacking, and surrounding water play a major role in the stability of DNA.

(1)

Expert Solution

Explanation of Solution

The DNA is a biomolecule and the reasons of its long term stability are:

1. The structural and chemical stability of DNA comes from the linkage between nucleotide bases and deoxyribose sugar, the linkage is termed as phosphodiester linkage. The phosphodiester bonds are not easy to break by hydrolysis so, these bonds are considered as strong attachments.

2. Base stacking is a major reason of DNA stability. Two polynucleotide strands are attached to one another in the form of stack because of the complementary nature of nucleotide bases.

3. Hydrogen bonds are found between two successive nucleotides, though hydrogen bonds are weak bonds, but large amount of bonds present on two strands of DNA make its chemical and structural condition stable.

4. The nitrogenous bases are complementary to each other so, nitrogenous bases present on two separate strands get bind strongly and form double helical structure of DNA to make it stable.

5. Lacking a hydroxyl group at 2^nd carbon also provide stability to DNA; hydroxyl group tends to react fast. The ribose sugar of DNA contains only one hydroxyl group at 5^th position which is engaged in the formation of phosphodiester bonds with phosphate group. The absence of spare hydroxyl groups provides immunity to DNA towards several chemical reactions.

(2)

Summary Introduction

To explain:

The stability of RNA is less in comparison to DNA.

Introduction:

RNA is a polynucleotide and it is the genetic material of various viruses. RNA and DNA are different from each other in composition as well as in the structure. RNA is less stable than DNA due to these structural and compositional differences.

(2)

Expert Solution

Explanation of Solution

The reasons of RNA being less stable than DNA are:

1. RNA is single stranded while DNA is a double stranded helical structure. The double helical structure of DNA is rich in hydrogen bonds, being single stranded, RNA does not possess large number of hydrogen bonding. Large number of hydrogen bonds need high amount of energy to break the bonds.

2. Presence of hydroxyl group on the 2^nd carbon of ribose sugar of RNA makes it less stable than DNA, as hydroxyl group is very reactive and can undergo hydrolysis easily.

3. In RNA, uracil is found in the place of thymine, thymine contains a methyl group which supports the repairing of damaged DNA. Uracil is formed by the deamination of cytosine. The rapid deamination of cytosine will decrease guanine and cytosine base pairing.

Conclusion

DNA is a stable molecule due to the presence of large number of hydrogen bonds, complementary nitrogenous bases present on two separate strands form hydrogen bonds and provide a double helical structure to DNA, absence of hydroxyl group in the sugar part of DNA prevents it from hydrolysis, base stacking also plays a major role in the DNA stability. RNA is less stable than DNA because of being single stranded and the presence of hydroxyl group on the 2^nd carbon of sugar makes it susceptible tohydrolysis. Presence of uracil in the place of thymine is a disadvantage of RNA.

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

Chapter 10, Problem 17AQP

(1)

Summary Introduction

To explain:

The aspects of DNA structure which provide stability to the molecule upto thousands of years.

Introduction:

The stability of DNA is dependent on various features and structural composition of DNA. The intermolecular interactions, double helical structure base stacking, and surrounding water play a major role in the stability of DNA.

(1)

Expert Solution

Explanation of Solution

The DNA is a biomolecule and the reasons of its long term stability are:

1. The structural and chemical stability of DNA comes from the linkage between nucleotide bases and deoxyribose sugar, the linkage is termed as phosphodiester linkage. The phosphodiester bonds are not easy to break by hydrolysis so, these bonds are considered as strong attachments.

2. Base stacking is a major reason of DNA stability. Two polynucleotide strands are attached to one another in the form of stack because of the complementary nature of nucleotide bases.

3. Hydrogen bonds are found between two successive nucleotides, though hydrogen bonds are weak bonds, but large amount of bonds present on two strands of DNA make its chemical and structural condition stable.

4. The nitrogenous bases are complementary to each other so, nitrogenous bases present on two separate strands get bind strongly and form double helical structure of DNA to make it stable.

5. Lacking a hydroxyl group at 2^nd carbon also provide stability to DNA; hydroxyl group tends to react fast. The ribose sugar of DNA contains only one hydroxyl group at 5^th position which is engaged in the formation of phosphodiester bonds with phosphate group. The absence of spare hydroxyl groups provides immunity to DNA towards several chemical reactions.

(2)

Summary Introduction

To explain:

The stability of RNA is less in comparison to DNA.

Introduction:

RNA is a polynucleotide and it is the genetic material of various viruses. RNA and DNA are different from each other in composition as well as in the structure. RNA is less stable than DNA due to these structural and compositional differences.

(2)

Expert Solution

Explanation of Solution

The reasons of RNA being less stable than DNA are:

1. RNA is single stranded while DNA is a double stranded helical structure. The double helical structure of DNA is rich in hydrogen bonds, being single stranded, RNA does not possess large number of hydrogen bonding. Large number of hydrogen bonds need high amount of energy to break the bonds.

2. Presence of hydroxyl group on the 2^nd carbon of ribose sugar of RNA makes it less stable than DNA, as hydroxyl group is very reactive and can undergo hydrolysis easily.

3. In RNA, uracil is found in the place of thymine, thymine contains a methyl group which supports the repairing of damaged DNA. Uracil is formed by the deamination of cytosine. The rapid deamination of cytosine will decrease guanine and cytosine base pairing.

Conclusion

DNA is a stable molecule due to the presence of large number of hydrogen bonds, complementary nitrogenous bases present on two separate strands form hydrogen bonds and provide a double helical structure to DNA, absence of hydroxyl group in the sugar part of DNA prevents it from hydrolysis, base stacking also plays a major role in the DNA stability. RNA is less stable than DNA because of being single stranded and the presence of hydroxyl group on the 2^nd carbon of sugar makes it susceptible tohydrolysis. Presence of uracil in the place of thymine is a disadvantage of RNA.

Answer 6

Chapter 10, Problem 17AQP

(1)

Summary Introduction

To explain:

The aspects of DNA structure which provide stability to the molecule upto thousands of years.

Introduction:

The stability of DNA is dependent on various features and structural composition of DNA. The intermolecular interactions, double helical structure base stacking, and surrounding water play a major role in the stability of DNA.

(1)

Expert Solution

Explanation of Solution

The DNA is a biomolecule and the reasons of its long term stability are:

1. The structural and chemical stability of DNA comes from the linkage between nucleotide bases and deoxyribose sugar, the linkage is termed as phosphodiester linkage. The phosphodiester bonds are not easy to break by hydrolysis so, these bonds are considered as strong attachments.

2. Base stacking is a major reason of DNA stability. Two polynucleotide strands are attached to one another in the form of stack because of the complementary nature of nucleotide bases.

3. Hydrogen bonds are found between two successive nucleotides, though hydrogen bonds are weak bonds, but large amount of bonds present on two strands of DNA make its chemical and structural condition stable.

4. The nitrogenous bases are complementary to each other so, nitrogenous bases present on two separate strands get bind strongly and form double helical structure of DNA to make it stable.

5. Lacking a hydroxyl group at 2^nd carbon also provide stability to DNA; hydroxyl group tends to react fast. The ribose sugar of DNA contains only one hydroxyl group at 5^th position which is engaged in the formation of phosphodiester bonds with phosphate group. The absence of spare hydroxyl groups provides immunity to DNA towards several chemical reactions.

Answer 7

Chapter 10, Problem 17AQP

(1)

Summary Introduction

To explain:

The aspects of DNA structure which provide stability to the molecule upto thousands of years.

Introduction:

The stability of DNA is dependent on various features and structural composition of DNA. The intermolecular interactions, double helical structure base stacking, and surrounding water play a major role in the stability of DNA.

Answer 8

(1)

Expert Solution

Explanation of Solution

The DNA is a biomolecule and the reasons of its long term stability are:

1. The structural and chemical stability of DNA comes from the linkage between nucleotide bases and deoxyribose sugar, the linkage is termed as phosphodiester linkage. The phosphodiester bonds are not easy to break by hydrolysis so, these bonds are considered as strong attachments.

2. Base stacking is a major reason of DNA stability. Two polynucleotide strands are attached to one another in the form of stack because of the complementary nature of nucleotide bases.

3. Hydrogen bonds are found between two successive nucleotides, though hydrogen bonds are weak bonds, but large amount of bonds present on two strands of DNA make its chemical and structural condition stable.

4. The nitrogenous bases are complementary to each other so, nitrogenous bases present on two separate strands get bind strongly and form double helical structure of DNA to make it stable.

5. Lacking a hydroxyl group at 2^nd carbon also provide stability to DNA; hydroxyl group tends to react fast. The ribose sugar of DNA contains only one hydroxyl group at 5^th position which is engaged in the formation of phosphodiester bonds with phosphate group. The absence of spare hydroxyl groups provides immunity to DNA towards several chemical reactions.

Answer 9

(1)

Expert Solution

Answer 10

(1)

Expert Solution

Answer 11

Expert Solution

Answer 12

(2)

Summary Introduction

To explain:

The stability of RNA is less in comparison to DNA.

Introduction:

RNA is a polynucleotide and it is the genetic material of various viruses. RNA and DNA are different from each other in composition as well as in the structure. RNA is less stable than DNA due to these structural and compositional differences.

(2)

Expert Solution

Explanation of Solution

The reasons of RNA being less stable than DNA are:

1. RNA is single stranded while DNA is a double stranded helical structure. The double helical structure of DNA is rich in hydrogen bonds, being single stranded, RNA does not possess large number of hydrogen bonding. Large number of hydrogen bonds need high amount of energy to break the bonds.

2. Presence of hydroxyl group on the 2^nd carbon of ribose sugar of RNA makes it less stable than DNA, as hydroxyl group is very reactive and can undergo hydrolysis easily.

3. In RNA, uracil is found in the place of thymine, thymine contains a methyl group which supports the repairing of damaged DNA. Uracil is formed by the deamination of cytosine. The rapid deamination of cytosine will decrease guanine and cytosine base pairing.

Conclusion

DNA is a stable molecule due to the presence of large number of hydrogen bonds, complementary nitrogenous bases present on two separate strands form hydrogen bonds and provide a double helical structure to DNA, absence of hydroxyl group in the sugar part of DNA prevents it from hydrolysis, base stacking also plays a major role in the DNA stability. RNA is less stable than DNA because of being single stranded and the presence of hydroxyl group on the 2^nd carbon of sugar makes it susceptible tohydrolysis. Presence of uracil in the place of thymine is a disadvantage of RNA.

Answer 13

(2)

Summary Introduction

To explain:

The stability of RNA is less in comparison to DNA.

Introduction:

RNA is a polynucleotide and it is the genetic material of various viruses. RNA and DNA are different from each other in composition as well as in the structure. RNA is less stable than DNA due to these structural and compositional differences.

Answer 14

(2)

Expert Solution

Explanation of Solution

The reasons of RNA being less stable than DNA are:

1. RNA is single stranded while DNA is a double stranded helical structure. The double helical structure of DNA is rich in hydrogen bonds, being single stranded, RNA does not possess large number of hydrogen bonding. Large number of hydrogen bonds need high amount of energy to break the bonds.

2. Presence of hydroxyl group on the 2^nd carbon of ribose sugar of RNA makes it less stable than DNA, as hydroxyl group is very reactive and can undergo hydrolysis easily.

3. In RNA, uracil is found in the place of thymine, thymine contains a methyl group which supports the repairing of damaged DNA. Uracil is formed by the deamination of cytosine. The rapid deamination of cytosine will decrease guanine and cytosine base pairing.

Answer 15

(2)

Expert Solution

Answer 16

(2)

Expert Solution

Answer 17

Expert Solution

Answer 18

Conclusion

DNA is a stable molecule due to the presence of large number of hydrogen bonds, complementary nitrogenous bases present on two separate strands form hydrogen bonds and provide a double helical structure to DNA, absence of hydroxyl group in the sugar part of DNA prevents it from hydrolysis, base stacking also plays a major role in the DNA stability. RNA is less stable than DNA because of being single stranded and the presence of hydroxyl group on the 2^nd carbon of sugar makes it susceptible tohydrolysis. Presence of uracil in the place of thymine is a disadvantage of RNA.

Answer 19

Ch. 10.1 - Prob. 1CC Ch. 10.1 - Prob. 1COQ Ch. 10.1 - Prob. 39CQ Ch. 10.1 - Prob. 1TPSQ Ch. 10.2 - Prob. 2CC Ch. 10.2 - Prob. 3CC Ch. 10.2 - Prob. 4CC Ch. 10.2 - Prob. 5CC Ch. 10.2 - Prob. 2COQ Ch. 10.2 - Prob. 3COQ

Explanation of Solution

Explanation of Solution

Want to see more full solutions like this?

Chapter 10 Solutions