Which of the following is not a property of DNA polymerase? a. It adds dNTPs only in the 5' → 3' direction. b. It requires a primer to work. c. It is associated with a sliding clamp only on the leading strand. d. Its exonuclease activity is involved in proofreading.

Question

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Answer 1

Textbook Question

Chapter 15, Problem 1TYK

Which of the following is not a property of DNA polymerase?

a. It adds dNTPs only in the 5' → 3' direction.

b. It requires a primer to work.

c. It is associated with a sliding clamp only on the leading strand.

d. Its exonuclease activity is involved in proofreading.

Expert Solution & Answer

Summary Introduction

Introduction:

DNA (deoxyribonucleic acid) polymerase is the enzyme responsible for the replication of DNA. The enzymes incorporate the deoxyribonucleotides (dNTPs) into the newly synthesizing DNA molecule from the template DNA. The sliding clamp acts as a processivity promoter factor in the DNA replication. It is crucial for DNA polymerase binding to the template DNA as it prevents the frequent dissociation of the DNA polymerase from the template DNA.

Answer to Problem 1TYK

Correct answer:

The association with the sliding clamp only on the leading strand is not the property of DNA polymerase.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as association of DNA polymerase only with sliding clamp on the leading strand. The DNA polymerase is associated with the sliding clamp protein in the leading as well as with the lagging strand. Hence, the Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as adding of dNTPs only in the 5’→3’ direction. The DNA polymerase adds the dNTPs on the growing end in the 5’→3’ direction. So, it is an incorrect option.

Option (b) is given as primer is needed for DNA polymerase. The primer is an oligonucleotide (short stretch of DNA or RNA [ribonucleic acid]) and is required for the synthesis of DNA using DNA polymerase. So, it is an incorrect option.

Option (d) is given as proofreading is associated with exonuclease activity of DNA polymerase. The enzyme also has an exonuclease activity for proofreading of newly synthesized DNA. These are the property of DNA polymerase. So, it is an incorrect option.

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

Conclusion

DNA polymerase catalyzes the addition of dNTPs in the 5’→3’ direction, it requires a primer for initiation of DNA replication, it has exonuclease proofreading activity, and is associated with sliding clamp on both the leading and lagging strand of DNA.

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Imagine that you are a clinical geneticist. Your colleague is an oncologist who wants your help explaining the basics of genetics to their patient, who will be undergoing genetic testing in the coming weeks for possible acute myeloid leukemia (AML) induced by the radiation she had several years ago for breast cancer. Write a 1,050- to 1,225-word memo to your colleague. Include the following in your memo: An explanation of the molecular structure of DNA and RNA, highlighting both similarities and differences A description of the processes of transcription and translation An explanation of the differences between leading and lagging strands and how the DNA is replicated in each strand Reponses to the following common questions patients might ask about this type of genetic testing and genetic disorder: Does AML run in families? What genes are tested for?

Respond to the following in a minimum of 175 words: What are some potential consequences that could result if the processes of replication, transcription, and translation don’t function correctly? Provide an example of how you might explain these consequences in terms that patients might understand.

Answer 2

Textbook Question

Chapter 15, Problem 1TYK

Which of the following is not a property of DNA polymerase?

a. It adds dNTPs only in the 5' → 3' direction.

b. It requires a primer to work.

c. It is associated with a sliding clamp only on the leading strand.

d. Its exonuclease activity is involved in proofreading.

Expert Solution & Answer

Summary Introduction

Introduction:

DNA (deoxyribonucleic acid) polymerase is the enzyme responsible for the replication of DNA. The enzymes incorporate the deoxyribonucleotides (dNTPs) into the newly synthesizing DNA molecule from the template DNA. The sliding clamp acts as a processivity promoter factor in the DNA replication. It is crucial for DNA polymerase binding to the template DNA as it prevents the frequent dissociation of the DNA polymerase from the template DNA.

Answer to Problem 1TYK

Correct answer:

The association with the sliding clamp only on the leading strand is not the property of DNA polymerase.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as association of DNA polymerase only with sliding clamp on the leading strand. The DNA polymerase is associated with the sliding clamp protein in the leading as well as with the lagging strand. Hence, the Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as adding of dNTPs only in the 5’→3’ direction. The DNA polymerase adds the dNTPs on the growing end in the 5’→3’ direction. So, it is an incorrect option.

Option (b) is given as primer is needed for DNA polymerase. The primer is an oligonucleotide (short stretch of DNA or RNA [ribonucleic acid]) and is required for the synthesis of DNA using DNA polymerase. So, it is an incorrect option.

Option (d) is given as proofreading is associated with exonuclease activity of DNA polymerase. The enzyme also has an exonuclease activity for proofreading of newly synthesized DNA. These are the property of DNA polymerase. So, it is an incorrect option.

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

Conclusion

DNA polymerase catalyzes the addition of dNTPs in the 5’→3’ direction, it requires a primer for initiation of DNA replication, it has exonuclease proofreading activity, and is associated with sliding clamp on both the leading and lagging strand of DNA.

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Answer 3

Textbook Question

Chapter 15, Problem 1TYK

Which of the following is not a property of DNA polymerase?

a. It adds dNTPs only in the 5' → 3' direction.

b. It requires a primer to work.

c. It is associated with a sliding clamp only on the leading strand.

d. Its exonuclease activity is involved in proofreading.

Expert Solution & Answer

Summary Introduction

Introduction:

DNA (deoxyribonucleic acid) polymerase is the enzyme responsible for the replication of DNA. The enzymes incorporate the deoxyribonucleotides (dNTPs) into the newly synthesizing DNA molecule from the template DNA. The sliding clamp acts as a processivity promoter factor in the DNA replication. It is crucial for DNA polymerase binding to the template DNA as it prevents the frequent dissociation of the DNA polymerase from the template DNA.

Answer to Problem 1TYK

Correct answer:

The association with the sliding clamp only on the leading strand is not the property of DNA polymerase.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as association of DNA polymerase only with sliding clamp on the leading strand. The DNA polymerase is associated with the sliding clamp protein in the leading as well as with the lagging strand. Hence, the Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as adding of dNTPs only in the 5’→3’ direction. The DNA polymerase adds the dNTPs on the growing end in the 5’→3’ direction. So, it is an incorrect option.

Option (b) is given as primer is needed for DNA polymerase. The primer is an oligonucleotide (short stretch of DNA or RNA [ribonucleic acid]) and is required for the synthesis of DNA using DNA polymerase. So, it is an incorrect option.

Option (d) is given as proofreading is associated with exonuclease activity of DNA polymerase. The enzyme also has an exonuclease activity for proofreading of newly synthesized DNA. These are the property of DNA polymerase. So, it is an incorrect option.

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

Conclusion

DNA polymerase catalyzes the addition of dNTPs in the 5’→3’ direction, it requires a primer for initiation of DNA replication, it has exonuclease proofreading activity, and is associated with sliding clamp on both the leading and lagging strand of DNA.

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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 15, Problem 1TYK

Which of the following is not a property of DNA polymerase?

a. It adds dNTPs only in the 5' → 3' direction.

b. It requires a primer to work.

c. It is associated with a sliding clamp only on the leading strand.

d. Its exonuclease activity is involved in proofreading.

Expert Solution & Answer

Summary Introduction

Introduction:

DNA (deoxyribonucleic acid) polymerase is the enzyme responsible for the replication of DNA. The enzymes incorporate the deoxyribonucleotides (dNTPs) into the newly synthesizing DNA molecule from the template DNA. The sliding clamp acts as a processivity promoter factor in the DNA replication. It is crucial for DNA polymerase binding to the template DNA as it prevents the frequent dissociation of the DNA polymerase from the template DNA.

Answer to Problem 1TYK

Correct answer:

The association with the sliding clamp only on the leading strand is not the property of DNA polymerase.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as association of DNA polymerase only with sliding clamp on the leading strand. The DNA polymerase is associated with the sliding clamp protein in the leading as well as with the lagging strand. Hence, the Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as adding of dNTPs only in the 5’→3’ direction. The DNA polymerase adds the dNTPs on the growing end in the 5’→3’ direction. So, it is an incorrect option.

Option (b) is given as primer is needed for DNA polymerase. The primer is an oligonucleotide (short stretch of DNA or RNA [ribonucleic acid]) and is required for the synthesis of DNA using DNA polymerase. So, it is an incorrect option.

Option (d) is given as proofreading is associated with exonuclease activity of DNA polymerase. The enzyme also has an exonuclease activity for proofreading of newly synthesized DNA. These are the property of DNA polymerase. So, it is an incorrect option.

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

Conclusion

DNA polymerase catalyzes the addition of dNTPs in the 5’→3’ direction, it requires a primer for initiation of DNA replication, it has exonuclease proofreading activity, and is associated with sliding clamp on both the leading and lagging strand of 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:

DNA (deoxyribonucleic acid) polymerase is the enzyme responsible for the replication of DNA. The enzymes incorporate the deoxyribonucleotides (dNTPs) into the newly synthesizing DNA molecule from the template DNA. The sliding clamp acts as a processivity promoter factor in the DNA replication. It is crucial for DNA polymerase binding to the template DNA as it prevents the frequent dissociation of the DNA polymerase from the template DNA.

Answer to Problem 1TYK

Correct answer:

The association with the sliding clamp only on the leading strand is not the property of DNA polymerase.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as association of DNA polymerase only with sliding clamp on the leading strand. The DNA polymerase is associated with the sliding clamp protein in the leading as well as with the lagging strand. Hence, the Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as adding of dNTPs only in the 5’→3’ direction. The DNA polymerase adds the dNTPs on the growing end in the 5’→3’ direction. So, it is an incorrect option.

Option (b) is given as primer is needed for DNA polymerase. The primer is an oligonucleotide (short stretch of DNA or RNA [ribonucleic acid]) and is required for the synthesis of DNA using DNA polymerase. So, it is an incorrect option.

Option (d) is given as proofreading is associated with exonuclease activity of DNA polymerase. The enzyme also has an exonuclease activity for proofreading of newly synthesized DNA. These are the property of DNA polymerase. So, it is an incorrect option.

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

Conclusion

DNA polymerase catalyzes the addition of dNTPs in the 5’→3’ direction, it requires a primer for initiation of DNA replication, it has exonuclease proofreading activity, and is associated with sliding clamp on both the leading and lagging strand of DNA.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

DNA (deoxyribonucleic acid) polymerase is the enzyme responsible for the replication of DNA. The enzymes incorporate the deoxyribonucleotides (dNTPs) into the newly synthesizing DNA molecule from the template DNA. The sliding clamp acts as a processivity promoter factor in the DNA replication. It is crucial for DNA polymerase binding to the template DNA as it prevents the frequent dissociation of the DNA polymerase from the template DNA.

Answer to Problem 1TYK

Correct answer:

The association with the sliding clamp only on the leading strand is not the property of DNA polymerase.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as association of DNA polymerase only with sliding clamp on the leading strand. The DNA polymerase is associated with the sliding clamp protein in the leading as well as with the lagging strand. Hence, the Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as adding of dNTPs only in the 5’→3’ direction. The DNA polymerase adds the dNTPs on the growing end in the 5’→3’ direction. So, it is an incorrect option.

Option (b) is given as primer is needed for DNA polymerase. The primer is an oligonucleotide (short stretch of DNA or RNA [ribonucleic acid]) and is required for the synthesis of DNA using DNA polymerase. So, it is an incorrect option.

Option (d) is given as proofreading is associated with exonuclease activity of DNA polymerase. The enzyme also has an exonuclease activity for proofreading of newly synthesized DNA. These are the property of DNA polymerase. So, it is an incorrect option.

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

Conclusion

DNA polymerase catalyzes the addition of dNTPs in the 5’→3’ direction, it requires a primer for initiation of DNA replication, it has exonuclease proofreading activity, and is associated with sliding clamp on both the leading and lagging strand of DNA.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

DNA (deoxyribonucleic acid) polymerase is the enzyme responsible for the replication of DNA. The enzymes incorporate the deoxyribonucleotides (dNTPs) into the newly synthesizing DNA molecule from the template DNA. The sliding clamp acts as a processivity promoter factor in the DNA replication. It is crucial for DNA polymerase binding to the template DNA as it prevents the frequent dissociation of the DNA polymerase from the template DNA.

Answer 12

Answer to Problem 1TYK

Correct answer:

The association with the sliding clamp only on the leading strand is not the property of DNA polymerase.

Answer 13

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given as association of DNA polymerase only with sliding clamp on the leading strand. The DNA polymerase is associated with the sliding clamp protein in the leading as well as with the lagging strand. Hence, the Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given as adding of dNTPs only in the 5’→3’ direction. The DNA polymerase adds the dNTPs on the growing end in the 5’→3’ direction. So, it is an incorrect option.

Option (b) is given as primer is needed for DNA polymerase. The primer is an oligonucleotide (short stretch of DNA or RNA [ribonucleic acid]) and is required for the synthesis of DNA using DNA polymerase. So, it is an incorrect option.

Option (d) is given as proofreading is associated with exonuclease activity of DNA polymerase. The enzyme also has an exonuclease activity for proofreading of newly synthesized DNA. These are the property of DNA polymerase. So, it is an incorrect option.

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

Answer 14

Conclusion

DNA polymerase catalyzes the addition of dNTPs in the 5’→3’ direction, it requires a primer for initiation of DNA replication, it has exonuclease proofreading activity, and is associated with sliding clamp on both the leading and lagging strand of DNA.

Answer 15

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Which of the following is not a property of DNA polymerase? a. It adds dNTPs only in the 5' → 3' direction. b. It requires a primer to work. c. It is associated with a sliding clamp only on the leading strand. d. Its exonuclease activity is involved in proofreading.

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Answer to Problem 1TYK

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