Which is not a nucleotide base in DNA? a. adenine b. guanine c. glutamine d. thymine e. cytosine f. All are in DNA.

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Answer 1

Textbook Question

Chapter 8, Problem 1SQ

Which is not a nucleotide base in DNA?

a. adenine

b. guanine

c. glutamine

d. thymine

e. cytosine

f. All are in DNA.

Expert Solution & Answer

Summary Introduction

Concept introduction: Nucleotides are building blocks of DNA and RNA. DNA has four nucleotides, namely adenine and guanine (which are purines), and thymine and cytosine (which are pyrimidines).

Answer to Problem 1SQ

Correct answer: Glutamine is not a nucleotide base in the DNA. Therefore, option c. is correct.

Explanation of Solution

Reasons for the correct statement:

Glutamine is a basic amino acid. DNA is made of purines and pyrimidines that are collectively called as nucleotides. Glutamine is neither a purine nor a pyrimidine.

Option c. is given as “glutamine”

As glutamine is an amino acid and not a nucleotide base, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “adenine”.

Adenine is a purine and a nucleotide base in DNA. Therefore, option a. is incorrect.

Option b. is given as “guanine”.

Guanine is a purine and is a nucleotide base in DNA. Therefore, option b. is incorrect.

Option d. is given as “thymine”.

Thymine is a pyrimidine and is a nucleotide base in DNA. Therefore, option d. is incorrect.

Option e. is given as “cytosine”.

Cytosine is a pyrimidine and is a nucleotide base in DNA. Therefore, option e. is incorrect.

Option f. is given as “All are in DNA”.

Adenine, guanine, cytosine, and thymine are present in DNA, and glutamine is absent in DNA. Therefore, option f. is incorrect.

Hence, options a., b., d., e., and f. are incorrect.

Conclusion

Purines and pyrimidines are the structural units of DNA. The purines are adenine and guanine, and pyrimidines are cytosine and thymine.

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Answer 2

Textbook Question

Chapter 8, Problem 1SQ

Which is not a nucleotide base in DNA?

a. adenine

b. guanine

c. glutamine

d. thymine

e. cytosine

f. All are in DNA.

Expert Solution & Answer

Summary Introduction

Concept introduction: Nucleotides are building blocks of DNA and RNA. DNA has four nucleotides, namely adenine and guanine (which are purines), and thymine and cytosine (which are pyrimidines).

Answer to Problem 1SQ

Correct answer: Glutamine is not a nucleotide base in the DNA. Therefore, option c. is correct.

Explanation of Solution

Reasons for the correct statement:

Glutamine is a basic amino acid. DNA is made of purines and pyrimidines that are collectively called as nucleotides. Glutamine is neither a purine nor a pyrimidine.

Option c. is given as “glutamine”

As glutamine is an amino acid and not a nucleotide base, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “adenine”.

Adenine is a purine and a nucleotide base in DNA. Therefore, option a. is incorrect.

Option b. is given as “guanine”.

Guanine is a purine and is a nucleotide base in DNA. Therefore, option b. is incorrect.

Option d. is given as “thymine”.

Thymine is a pyrimidine and is a nucleotide base in DNA. Therefore, option d. is incorrect.

Option e. is given as “cytosine”.

Cytosine is a pyrimidine and is a nucleotide base in DNA. Therefore, option e. is incorrect.

Option f. is given as “All are in DNA”.

Adenine, guanine, cytosine, and thymine are present in DNA, and glutamine is absent in DNA. Therefore, option f. is incorrect.

Hence, options a., b., d., e., and f. are incorrect.

Conclusion

Purines and pyrimidines are the structural units of DNA. The purines are adenine and guanine, and pyrimidines are cytosine and thymine.

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Answer 3

Textbook Question

Chapter 8, Problem 1SQ

Which is not a nucleotide base in DNA?

a. adenine

b. guanine

c. glutamine

d. thymine

e. cytosine

f. All are in DNA.

Expert Solution & Answer

Summary Introduction

Concept introduction: Nucleotides are building blocks of DNA and RNA. DNA has four nucleotides, namely adenine and guanine (which are purines), and thymine and cytosine (which are pyrimidines).

Answer to Problem 1SQ

Correct answer: Glutamine is not a nucleotide base in the DNA. Therefore, option c. is correct.

Explanation of Solution

Reasons for the correct statement:

Glutamine is a basic amino acid. DNA is made of purines and pyrimidines that are collectively called as nucleotides. Glutamine is neither a purine nor a pyrimidine.

Option c. is given as “glutamine”

As glutamine is an amino acid and not a nucleotide base, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “adenine”.

Adenine is a purine and a nucleotide base in DNA. Therefore, option a. is incorrect.

Option b. is given as “guanine”.

Guanine is a purine and is a nucleotide base in DNA. Therefore, option b. is incorrect.

Option d. is given as “thymine”.

Thymine is a pyrimidine and is a nucleotide base in DNA. Therefore, option d. is incorrect.

Option e. is given as “cytosine”.

Cytosine is a pyrimidine and is a nucleotide base in DNA. Therefore, option e. is incorrect.

Option f. is given as “All are in DNA”.

Adenine, guanine, cytosine, and thymine are present in DNA, and glutamine is absent in DNA. Therefore, option f. is incorrect.

Hence, options a., b., d., e., and f. are incorrect.

Conclusion

Purines and pyrimidines are the structural units of DNA. The purines are adenine and guanine, and pyrimidines are cytosine and thymine.

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Answer 4

Textbook Question

Chapter 8, Problem 1SQ

Which is not a nucleotide base in DNA?

a. adenine

b. guanine

c. glutamine

d. thymine

e. cytosine

f. All are in DNA.

Expert Solution & Answer

Summary Introduction

Concept introduction: Nucleotides are building blocks of DNA and RNA. DNA has four nucleotides, namely adenine and guanine (which are purines), and thymine and cytosine (which are pyrimidines).

Answer to Problem 1SQ

Correct answer: Glutamine is not a nucleotide base in the DNA. Therefore, option c. is correct.

Explanation of Solution

Reasons for the correct statement:

Glutamine is a basic amino acid. DNA is made of purines and pyrimidines that are collectively called as nucleotides. Glutamine is neither a purine nor a pyrimidine.

Option c. is given as “glutamine”

As glutamine is an amino acid and not a nucleotide base, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “adenine”.

Adenine is a purine and a nucleotide base in DNA. Therefore, option a. is incorrect.

Option b. is given as “guanine”.

Guanine is a purine and is a nucleotide base in DNA. Therefore, option b. is incorrect.

Option d. is given as “thymine”.

Thymine is a pyrimidine and is a nucleotide base in DNA. Therefore, option d. is incorrect.

Option e. is given as “cytosine”.

Cytosine is a pyrimidine and is a nucleotide base in DNA. Therefore, option e. is incorrect.

Option f. is given as “All are in DNA”.

Adenine, guanine, cytosine, and thymine are present in DNA, and glutamine is absent in DNA. Therefore, option f. is incorrect.

Hence, options a., b., d., e., and f. are incorrect.

Conclusion

Purines and pyrimidines are the structural units of DNA. The purines are adenine and guanine, and pyrimidines are cytosine and thymine.

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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

Concept introduction: Nucleotides are building blocks of DNA and RNA. DNA has four nucleotides, namely adenine and guanine (which are purines), and thymine and cytosine (which are pyrimidines).

Answer to Problem 1SQ

Correct answer: Glutamine is not a nucleotide base in the DNA. Therefore, option c. is correct.

Explanation of Solution

Reasons for the correct statement:

Glutamine is a basic amino acid. DNA is made of purines and pyrimidines that are collectively called as nucleotides. Glutamine is neither a purine nor a pyrimidine.

Option c. is given as “glutamine”

As glutamine is an amino acid and not a nucleotide base, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “adenine”.

Adenine is a purine and a nucleotide base in DNA. Therefore, option a. is incorrect.

Option b. is given as “guanine”.

Guanine is a purine and is a nucleotide base in DNA. Therefore, option b. is incorrect.

Option d. is given as “thymine”.

Thymine is a pyrimidine and is a nucleotide base in DNA. Therefore, option d. is incorrect.

Option e. is given as “cytosine”.

Cytosine is a pyrimidine and is a nucleotide base in DNA. Therefore, option e. is incorrect.

Option f. is given as “All are in DNA”.

Adenine, guanine, cytosine, and thymine are present in DNA, and glutamine is absent in DNA. Therefore, option f. is incorrect.

Hence, options a., b., d., e., and f. are incorrect.

Conclusion

Purines and pyrimidines are the structural units of DNA. The purines are adenine and guanine, and pyrimidines are cytosine and thymine.

Answer 8

Expert Solution & Answer

Summary Introduction

Concept introduction: Nucleotides are building blocks of DNA and RNA. DNA has four nucleotides, namely adenine and guanine (which are purines), and thymine and cytosine (which are pyrimidines).

Answer to Problem 1SQ

Correct answer: Glutamine is not a nucleotide base in the DNA. Therefore, option c. is correct.

Explanation of Solution

Reasons for the correct statement:

Glutamine is a basic amino acid. DNA is made of purines and pyrimidines that are collectively called as nucleotides. Glutamine is neither a purine nor a pyrimidine.

Option c. is given as “glutamine”

As glutamine is an amino acid and not a nucleotide base, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “adenine”.

Adenine is a purine and a nucleotide base in DNA. Therefore, option a. is incorrect.

Option b. is given as “guanine”.

Guanine is a purine and is a nucleotide base in DNA. Therefore, option b. is incorrect.

Option d. is given as “thymine”.

Thymine is a pyrimidine and is a nucleotide base in DNA. Therefore, option d. is incorrect.

Option e. is given as “cytosine”.

Cytosine is a pyrimidine and is a nucleotide base in DNA. Therefore, option e. is incorrect.

Option f. is given as “All are in DNA”.

Adenine, guanine, cytosine, and thymine are present in DNA, and glutamine is absent in DNA. Therefore, option f. is incorrect.

Hence, options a., b., d., e., and f. are incorrect.

Conclusion

Purines and pyrimidines are the structural units of DNA. The purines are adenine and guanine, and pyrimidines are cytosine and thymine.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Concept introduction: Nucleotides are building blocks of DNA and RNA. DNA has four nucleotides, namely adenine and guanine (which are purines), and thymine and cytosine (which are pyrimidines).

Answer 12

Answer to Problem 1SQ

Correct answer: Glutamine is not a nucleotide base in the DNA. Therefore, option c. is correct.

Answer 13

Explanation of Solution

Reasons for the correct statement:

Glutamine is a basic amino acid. DNA is made of purines and pyrimidines that are collectively called as nucleotides. Glutamine is neither a purine nor a pyrimidine.

Option c. is given as “glutamine”

As glutamine is an amino acid and not a nucleotide base, option c. is correct.

Reasons for the incorrect statements:

Option a. is given as “adenine”.

Adenine is a purine and a nucleotide base in DNA. Therefore, option a. is incorrect.

Option b. is given as “guanine”.

Guanine is a purine and is a nucleotide base in DNA. Therefore, option b. is incorrect.

Option d. is given as “thymine”.

Thymine is a pyrimidine and is a nucleotide base in DNA. Therefore, option d. is incorrect.

Option e. is given as “cytosine”.

Cytosine is a pyrimidine and is a nucleotide base in DNA. Therefore, option e. is incorrect.

Option f. is given as “All are in DNA”.

Adenine, guanine, cytosine, and thymine are present in DNA, and glutamine is absent in DNA. Therefore, option f. is incorrect.

Hence, options a., b., d., e., and f. are incorrect.

Answer 14

Conclusion

Purines and pyrimidines are the structural units of DNA. The purines are adenine and guanine, and pyrimidines are cytosine and thymine.

Answer 15

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Which is not a nucleotide base in DNA? a. adenine b. guanine c. glutamine d. thymine e. cytosine f. All are in DNA.

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Answer to Problem 1SQ

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