(a) Interpretation: Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions 1 and 3 in the ring. Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring. Concept introduction: Cytosine is one of the four bases found in DNA and RNA . The structure of cytosine is To determine: Cytosine is a pyrimidine or a purine

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Answer 1

Question

Chapter 21, Problem 21.107AQAP

Interpretation Introduction

(a)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Cytosine is one of the four bases found in $DNA and RNA$ . The structure of cytosine is

To determine: Cytosine is a pyrimidine or a purine

Interpretation Introduction

(b)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Adenine is one of the two purine nucleases with structural formula is $C_{5} H_{5} N_{5}$ .

To determine: Adenine is a pyrimidine or a purine

Interpretation Introduction

(c)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Uracil is one of the four nucleases in the nucleic of $RNA$ that are represented by the letters $A,G,C and U$ .

The structure formula of Uracil is $C_{4} H_{4} N_{2}$

To determine:

Uracil is a pyrimidine or purine.

Interpretation Introduction

(d)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept interdiction:

Thymine is one of the four nucleobases in the nucleic acid of $DNA$ with structural formula $C_{5} H_{6} N_{2} O_{2}$

The structure of thymine is as follows.

To determine:

Thymine is pyrimidine or purine.

Interpretation Introduction

(e)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Guanine is one of the four main nucleobases found in the nucleic acid. The structure of guanine is as follows.

To determine:

Guanine is pyrimidine or purine.

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Answer 2

Question

Chapter 21, Problem 21.107AQAP

Interpretation Introduction

(a)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Cytosine is one of the four bases found in $DNA and RNA$ . The structure of cytosine is

To determine: Cytosine is a pyrimidine or a purine

Interpretation Introduction

(b)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Adenine is one of the two purine nucleases with structural formula is $C_{5} H_{5} N_{5}$ .

To determine: Adenine is a pyrimidine or a purine

Interpretation Introduction

(c)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Uracil is one of the four nucleases in the nucleic of $RNA$ that are represented by the letters $A,G,C and U$ .

The structure formula of Uracil is $C_{4} H_{4} N_{2}$

To determine:

Uracil is a pyrimidine or purine.

Interpretation Introduction

(d)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept interdiction:

Thymine is one of the four nucleobases in the nucleic acid of $DNA$ with structural formula $C_{5} H_{6} N_{2} O_{2}$

The structure of thymine is as follows.

To determine:

Thymine is pyrimidine or purine.

Interpretation Introduction

(e)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Guanine is one of the four main nucleobases found in the nucleic acid. The structure of guanine is as follows.

To determine:

Guanine is pyrimidine or purine.

Expert Solution & Answer

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Answer 3

Question

Chapter 21, Problem 21.107AQAP

Interpretation Introduction

(a)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Cytosine is one of the four bases found in $DNA and RNA$ . The structure of cytosine is

To determine: Cytosine is a pyrimidine or a purine

Interpretation Introduction

(b)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Adenine is one of the two purine nucleases with structural formula is $C_{5} H_{5} N_{5}$ .

To determine: Adenine is a pyrimidine or a purine

Interpretation Introduction

(c)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Uracil is one of the four nucleases in the nucleic of $RNA$ that are represented by the letters $A,G,C and U$ .

The structure formula of Uracil is $C_{4} H_{4} N_{2}$

To determine:

Uracil is a pyrimidine or purine.

Interpretation Introduction

(d)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept interdiction:

Thymine is one of the four nucleobases in the nucleic acid of $DNA$ with structural formula $C_{5} H_{6} N_{2} O_{2}$

The structure of thymine is as follows.

To determine:

Thymine is pyrimidine or purine.

Interpretation Introduction

(e)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Guanine is one of the four main nucleobases found in the nucleic acid. The structure of guanine is as follows.

To determine:

Guanine is pyrimidine or purine.

Expert Solution & Answer

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Answer 4

Question

Chapter 21, Problem 21.107AQAP

Interpretation Introduction

(a)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Cytosine is one of the four bases found in $DNA and RNA$ . The structure of cytosine is

To determine: Cytosine is a pyrimidine or a purine

Interpretation Introduction

(b)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Adenine is one of the two purine nucleases with structural formula is $C_{5} H_{5} N_{5}$ .

To determine: Adenine is a pyrimidine or a purine

Interpretation Introduction

(c)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Uracil is one of the four nucleases in the nucleic of $RNA$ that are represented by the letters $A,G,C and U$ .

The structure formula of Uracil is $C_{4} H_{4} N_{2}$

To determine:

Uracil is a pyrimidine or purine.

Interpretation Introduction

(d)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept interdiction:

Thymine is one of the four nucleobases in the nucleic acid of $DNA$ with structural formula $C_{5} H_{6} N_{2} O_{2}$

The structure of thymine is as follows.

To determine:

Thymine is pyrimidine or purine.

Interpretation Introduction

(e)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Guanine is one of the four main nucleobases found in the nucleic acid. The structure of guanine is as follows.

To determine:

Guanine is pyrimidine or purine.

Expert Solution & Answer

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Answer 5

Chapter 21, Problem 21.107AQAP

Interpretation Introduction

(a)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Cytosine is one of the four bases found in $DNA and RNA$ . The structure of cytosine is

To determine: Cytosine is a pyrimidine or a purine

Interpretation Introduction

(b)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Adenine is one of the two purine nucleases with structural formula is $C_{5} H_{5} N_{5}$ .

To determine: Adenine is a pyrimidine or a purine

Interpretation Introduction

(c)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Uracil is one of the four nucleases in the nucleic of $RNA$ that are represented by the letters $A,G,C and U$ .

The structure formula of Uracil is $C_{4} H_{4} N_{2}$

To determine:

Uracil is a pyrimidine or purine.

Interpretation Introduction

(d)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept interdiction:

Thymine is one of the four nucleobases in the nucleic acid of $DNA$ with structural formula $C_{5} H_{6} N_{2} O_{2}$

The structure of thymine is as follows.

To determine:

Thymine is pyrimidine or purine.

Interpretation Introduction

(e)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Guanine is one of the four main nucleobases found in the nucleic acid. The structure of guanine is as follows.

To determine:

Guanine is pyrimidine or purine.

Answer 6

Chapter 21, Problem 21.107AQAP

Interpretation Introduction

(a)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Cytosine is one of the four bases found in $DNA and RNA$ . The structure of cytosine is

To determine: Cytosine is a pyrimidine or a purine

Answer 7

Chapter 21, Problem 21.107AQAP

Interpretation Introduction

(a)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Cytosine is one of the four bases found in $DNA and RNA$ . The structure of cytosine is

To determine: Cytosine is a pyrimidine or a purine

Answer 8

Interpretation Introduction

(b)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Adenine is one of the two purine nucleases with structural formula is $C_{5} H_{5} N_{5}$ .

To determine: Adenine is a pyrimidine or a purine

Answer 9

Interpretation Introduction

(b)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Adenine is one of the two purine nucleases with structural formula is $C_{5} H_{5} N_{5}$ .

To determine: Adenine is a pyrimidine or a purine

Answer 10

Interpretation Introduction

(c)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Uracil is one of the four nucleases in the nucleic of $RNA$ that are represented by the letters $A,G,C and U$ .

The structure formula of Uracil is $C_{4} H_{4} N_{2}$

To determine:

Uracil is a pyrimidine or purine.

Answer 11

Interpretation Introduction

(c)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Uracil is one of the four nucleases in the nucleic of $RNA$ that are represented by the letters $A,G,C and U$ .

The structure formula of Uracil is $C_{4} H_{4} N_{2}$

To determine:

Uracil is a pyrimidine or purine.

Answer 12

Interpretation Introduction

(d)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept interdiction:

Thymine is one of the four nucleobases in the nucleic acid of $DNA$ with structural formula $C_{5} H_{6} N_{2} O_{2}$

The structure of thymine is as follows.

To determine:

Thymine is pyrimidine or purine.

Answer 13

Interpretation Introduction

(d)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept interdiction:

Thymine is one of the four nucleobases in the nucleic acid of $DNA$ with structural formula $C_{5} H_{6} N_{2} O_{2}$

The structure of thymine is as follows.

To determine:

Thymine is pyrimidine or purine.

Answer 14

Interpretation Introduction

(e)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Guanine is one of the four main nucleobases found in the nucleic acid. The structure of guanine is as follows.

To determine:

Guanine is pyrimidine or purine.

Answer 15

Interpretation Introduction

(e)

Interpretation:

Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions $1 and 3$ in the ring.

Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.

Concept introduction:

Guanine is one of the four main nucleobases found in the nucleic acid. The structure of guanine is as follows.

To determine:

Guanine is pyrimidine or purine.

Answer 16

Expert Solution & Answer

Answer 17

Expert Solution & Answer

Answer 18

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Answer 19

Ch. 21.1 - Prob. 21.1QAP Ch. 21.1 - Prob. 21.2QAP Ch. 21.1 - Prob. 21.3QAP Ch. 21.1 - Prob. 21.4QAP Ch. 21.2 - Prob. 21.5QAP Ch. 21.2 - Prob. 21.6QAP Ch. 21.2 - Prob. 21.7QAP Ch. 21.2 - Prob. 21.8QAP Ch. 21.2 - Prob. 21.9QAP Ch. 21.2 - Prob. 21.10QAP

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Chapter 21 Solutions