The consequence of the differences in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and ribonucleic acid (RNA) sets in the given data. Given: Purine to pyrimidine ratio of DNA and RNA in the tissues of some organisms is provided in the Tables 1 and 2. Table 1: Purine to pyrimidine ratio of DNA in different organisms. Organism and the tissue from which DNA is extracted Ratio of purine to pyrimidine in DNA Herring sperm pyrimidines ratio 1 Rat bone marrow 1 Human sperm 1 Escherichia coli 1.04 Yeast 1 Table 2: Purine to pyrimidine ratio of RNA among different organisms. Organism and the tissue from which RNA is extracted Ratio of purine to pyrimidine in RNA Rat liver 0.91 Carp muscle 1.03 Yeast 1.24 Rabbit liver 0.87 Cat brain 1.15 Introduction: Purine and pyrimidine form an important part of DNA and RNA structures. The combination of different purines and pyrimidines in a DNA defines the genetic constitution of a given cell. The genetic code is an ultimate source of protein expression. The combination of purine and pyrimidine, therefore, indirectly affects the types of proteins expressed in different organisms. In DNA, purines are A (adenine) and G (guanine), and pyrimidines are T (thymine) and C (cytosine). The RNA does not act as the source of genetic code (except for a few viruses) because it is more reactive and unstable as compared to DNA. In RNA, the uracil is present instead of thymine.

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Chapter 4, Problem 3Q

Summary Introduction

To review:

The consequence of the differences in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and ribonucleic acid (RNA) sets in the given data.

Given:

Purine to pyrimidine ratio of DNA and RNA in the tissues of some organisms is provided in the Tables 1 and 2.

Table 1: Purine to pyrimidine ratio of DNA in different organisms.

Organism and the tissue from which DNA is extracted Ratio of purine to pyrimidine in DNA

Herring sperm pyrimidines ratio 1

Rat bone marrow 1

Human sperm 1

Escherichia coli 1.04

Yeast 1

Table 2: Purine to pyrimidine ratio of RNA among different organisms.

Organism and the tissue from which RNA is extracted Ratio of purine to pyrimidine in RNA

Rat liver 0.91

Carp muscle 1.03

Yeast 1.24

Rabbit liver 0.87

Cat brain 1.15

Introduction:

Purine and pyrimidine form an important part of DNA and RNA structures. The combination of different purines and pyrimidines in a DNA defines the genetic constitution of a given cell. The genetic code is an ultimate source of protein expression. The combination of purine and pyrimidine, therefore, indirectly affects the types of proteins expressed in different organisms.

In DNA, purines are A (adenine) and G (guanine), and pyrimidines are T (thymine) and C (cytosine). The RNA does not act as the source of genetic code (except for a few viruses) because it is more reactive and unstable as compared to DNA. In RNA, the uracil is present instead of thymine.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

Answer 2

Question

Chapter 4, Problem 3Q

Summary Introduction

To review:

The consequence of the differences in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and ribonucleic acid (RNA) sets in the given data.

Given:

Purine to pyrimidine ratio of DNA and RNA in the tissues of some organisms is provided in the Tables 1 and 2.

Table 1: Purine to pyrimidine ratio of DNA in different organisms.

Organism and the tissue from which DNA is extracted Ratio of purine to pyrimidine in DNA

Herring sperm pyrimidines ratio 1

Rat bone marrow 1

Human sperm 1

Escherichia coli 1.04

Yeast 1

Table 2: Purine to pyrimidine ratio of RNA among different organisms.

Organism and the tissue from which RNA is extracted Ratio of purine to pyrimidine in RNA

Rat liver 0.91

Carp muscle 1.03

Yeast 1.24

Rabbit liver 0.87

Cat brain 1.15

Introduction:

Purine and pyrimidine form an important part of DNA and RNA structures. The combination of different purines and pyrimidines in a DNA defines the genetic constitution of a given cell. The genetic code is an ultimate source of protein expression. The combination of purine and pyrimidine, therefore, indirectly affects the types of proteins expressed in different organisms.

In DNA, purines are A (adenine) and G (guanine), and pyrimidines are T (thymine) and C (cytosine). The RNA does not act as the source of genetic code (except for a few viruses) because it is more reactive and unstable as compared to DNA. In RNA, the uracil is present instead of thymine.

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Answer 3

Question

Chapter 4, Problem 3Q

Summary Introduction

To review:

The consequence of the differences in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and ribonucleic acid (RNA) sets in the given data.

Given:

Purine to pyrimidine ratio of DNA and RNA in the tissues of some organisms is provided in the Tables 1 and 2.

Table 1: Purine to pyrimidine ratio of DNA in different organisms.

Organism and the tissue from which DNA is extracted Ratio of purine to pyrimidine in DNA

Herring sperm pyrimidines ratio 1

Rat bone marrow 1

Human sperm 1

Escherichia coli 1.04

Yeast 1

Table 2: Purine to pyrimidine ratio of RNA among different organisms.

Organism and the tissue from which RNA is extracted Ratio of purine to pyrimidine in RNA

Rat liver 0.91

Carp muscle 1.03

Yeast 1.24

Rabbit liver 0.87

Cat brain 1.15

Introduction:

Purine and pyrimidine form an important part of DNA and RNA structures. The combination of different purines and pyrimidines in a DNA defines the genetic constitution of a given cell. The genetic code is an ultimate source of protein expression. The combination of purine and pyrimidine, therefore, indirectly affects the types of proteins expressed in different organisms.

In DNA, purines are A (adenine) and G (guanine), and pyrimidines are T (thymine) and C (cytosine). The RNA does not act as the source of genetic code (except for a few viruses) because it is more reactive and unstable as compared to DNA. In RNA, the uracil is present instead of thymine.

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Answer 4

Question

Chapter 4, Problem 3Q

Summary Introduction

To review:

The consequence of the differences in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and ribonucleic acid (RNA) sets in the given data.

Given:

Purine to pyrimidine ratio of DNA and RNA in the tissues of some organisms is provided in the Tables 1 and 2.

Table 1: Purine to pyrimidine ratio of DNA in different organisms.

Organism and the tissue from which DNA is extracted Ratio of purine to pyrimidine in DNA

Herring sperm pyrimidines ratio 1

Rat bone marrow 1

Human sperm 1

Escherichia coli 1.04

Yeast 1

Table 2: Purine to pyrimidine ratio of RNA among different organisms.

Organism and the tissue from which RNA is extracted Ratio of purine to pyrimidine in RNA

Rat liver 0.91

Carp muscle 1.03

Yeast 1.24

Rabbit liver 0.87

Cat brain 1.15

Introduction:

Purine and pyrimidine form an important part of DNA and RNA structures. The combination of different purines and pyrimidines in a DNA defines the genetic constitution of a given cell. The genetic code is an ultimate source of protein expression. The combination of purine and pyrimidine, therefore, indirectly affects the types of proteins expressed in different organisms.

In DNA, purines are A (adenine) and G (guanine), and pyrimidines are T (thymine) and C (cytosine). The RNA does not act as the source of genetic code (except for a few viruses) because it is more reactive and unstable as compared to DNA. In RNA, the uracil is present instead of thymine.

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Answer 5

Chapter 4, Problem 3Q

Summary Introduction

To review:

The consequence of the differences in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and ribonucleic acid (RNA) sets in the given data.

Given:

Purine to pyrimidine ratio of DNA and RNA in the tissues of some organisms is provided in the Tables 1 and 2.

Table 1: Purine to pyrimidine ratio of DNA in different organisms.

Organism and the tissue from which DNA is extracted Ratio of purine to pyrimidine in DNA

Herring sperm pyrimidines ratio 1

Rat bone marrow 1

Human sperm 1

Escherichia coli 1.04

Yeast 1

Table 2: Purine to pyrimidine ratio of RNA among different organisms.

Organism and the tissue from which RNA is extracted Ratio of purine to pyrimidine in RNA

Rat liver 0.91

Carp muscle 1.03

Yeast 1.24

Rabbit liver 0.87

Cat brain 1.15

Introduction:

Purine and pyrimidine form an important part of DNA and RNA structures. The combination of different purines and pyrimidines in a DNA defines the genetic constitution of a given cell. The genetic code is an ultimate source of protein expression. The combination of purine and pyrimidine, therefore, indirectly affects the types of proteins expressed in different organisms.

In DNA, purines are A (adenine) and G (guanine), and pyrimidines are T (thymine) and C (cytosine). The RNA does not act as the source of genetic code (except for a few viruses) because it is more reactive and unstable as compared to DNA. In RNA, the uracil is present instead of thymine.

Answer 6

Chapter 4, Problem 3Q

Summary Introduction

To review:

The consequence of the differences in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and ribonucleic acid (RNA) sets in the given data.

Given:

Purine to pyrimidine ratio of DNA and RNA in the tissues of some organisms is provided in the Tables 1 and 2.

Table 1: Purine to pyrimidine ratio of DNA in different organisms.

Organism and the tissue from which DNA is extracted Ratio of purine to pyrimidine in DNA

Herring sperm pyrimidines ratio 1

Rat bone marrow 1

Human sperm 1

Escherichia coli 1.04

Yeast 1

Table 2: Purine to pyrimidine ratio of RNA among different organisms.

Organism and the tissue from which RNA is extracted Ratio of purine to pyrimidine in RNA

Rat liver 0.91

Carp muscle 1.03

Yeast 1.24

Rabbit liver 0.87

Cat brain 1.15

Introduction:

Purine and pyrimidine form an important part of DNA and RNA structures. The combination of different purines and pyrimidines in a DNA defines the genetic constitution of a given cell. The genetic code is an ultimate source of protein expression. The combination of purine and pyrimidine, therefore, indirectly affects the types of proteins expressed in different organisms.

In DNA, purines are A (adenine) and G (guanine), and pyrimidines are T (thymine) and C (cytosine). The RNA does not act as the source of genetic code (except for a few viruses) because it is more reactive and unstable as compared to DNA. In RNA, the uracil is present instead of thymine.

Answer 7

Chapter 4, Problem 3Q

Summary Introduction

To review:

The consequence of the differences in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and ribonucleic acid (RNA) sets in the given data.

Given:

Purine to pyrimidine ratio of DNA and RNA in the tissues of some organisms is provided in the Tables 1 and 2.

Table 1: Purine to pyrimidine ratio of DNA in different organisms.

Organism and the tissue from which DNA is extracted Ratio of purine to pyrimidine in DNA

Herring sperm pyrimidines ratio 1

Rat bone marrow 1

Human sperm 1

Escherichia coli 1.04

Yeast 1

Table 2: Purine to pyrimidine ratio of RNA among different organisms.

Organism and the tissue from which RNA is extracted Ratio of purine to pyrimidine in RNA

Rat liver 0.91

Carp muscle 1.03

Yeast 1.24

Rabbit liver 0.87

Cat brain 1.15

Introduction:

Purine and pyrimidine form an important part of DNA and RNA structures. The combination of different purines and pyrimidines in a DNA defines the genetic constitution of a given cell. The genetic code is an ultimate source of protein expression. The combination of purine and pyrimidine, therefore, indirectly affects the types of proteins expressed in different organisms.

In DNA, purines are A (adenine) and G (guanine), and pyrimidines are T (thymine) and C (cytosine). The RNA does not act as the source of genetic code (except for a few viruses) because it is more reactive and unstable as compared to DNA. In RNA, the uracil is present instead of thymine.

Answer 8

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Answer 11

Ch. 4.1 - Prob. 1R Ch. 4.1 - Prob. 2R Ch. 4.1 - Prob. 3R Ch. 4.2 - Prob. 1R Ch. 4.2 - Prob. 2R Ch. 4.2 - Prob. 3R Ch. 4.3 - Prob. 1R Ch. 4.3 - Prob. 2R Ch. 4.3 - Prob. 3R Ch. 4.4 - Prob. 1R

Solution Summary: The author analyzes the difference in purine to pyrimidine ratio between deoxyribose nucleic acid (DNA) and RNA (RNA).

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Chapter 4 Solutions

Organism and the tissue from which DNA is extracted	Ratio of purine to pyrimidine in DNA
Herring sperm pyrimidines ratio	1
Rat bone marrow	1
Human sperm	1
Escherichia coli	1.04
Yeast	1

Organism and the tissue from which RNA is extracted	Ratio of purine to pyrimidine in RNA
Rat liver	0.91
Carp muscle	1.03
Yeast	1.24
Rabbit liver	0.87
Cat brain	1.15