The reasons why cells go to great lengths of variability to ensure the fidelity of DNA replication. Introduction: Mutations are the permanent alteration of nucleotide sequences of the genome of a particular organism. It may or may not produce discernible changes in many characters of that particular organism. In some cases, mutations will bring about many desirable changes and many other times, it will affect the well-being of the organism. However, for better survival, it is necessary for the organisms to bring some desirable changes in the genome.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 9, Problem 1Q

Summary Introduction

To explain: The reasons why cells go to great lengths of variability to ensure the fidelity of DNA replication.

Introduction: Mutations are the permanent alteration of nucleotide sequences of the genome of a particular organism. It may or may not produce discernible changes in many characters of that particular organism. In some cases, mutations will bring about many desirable changes and many other times, it will affect the well-being of the organism. However, for better survival, it is necessary for the organisms to bring some desirable changes in the genome.

Expert Solution & Answer

Explanation of Solution

A single mutation has got a very large effect on the genome of every organism. Usually, evolutionary changes always results from many mutations with small effects. For bringing some desirable variations in the genetic configuration, it is very necessary that the changes produced should be very stable, variant, and a healthy balance must be followed in-between these two. The rate of mutation also has a significant role in the existence of the respective species; if the rate is too high, it would result in the gradual disappearance of the organisms.

The adaptation of every species that has gone through mutation relies in its fidelity of DNA replication. This is so that any error in the replication will be automatically corrected so that it won’t produce any negative effect to the organism; this is what is called as genetic memory. However, in many cases, it is very essential for the organism to make some changes in a DNA sequence. At these times, desirable changes will be produced as they are very crucial for the survival of the organism. These changes will persist only by selection. If such changes have no significant role, they will not be accumulated and if such changes are devastating, then the organism will die as a result of natural selection.

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

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…

Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:

a. What percentage of a drug is eliminated after 4 half-lives? Please round to the nearest percent. b. What will happen to elimination of the drug in the previous question if the system is saturated? explain and show any math involved

Answer 2

Question

Chapter 9, Problem 1Q

Summary Introduction

To explain: The reasons why cells go to great lengths of variability to ensure the fidelity of DNA replication.

Introduction: Mutations are the permanent alteration of nucleotide sequences of the genome of a particular organism. It may or may not produce discernible changes in many characters of that particular organism. In some cases, mutations will bring about many desirable changes and many other times, it will affect the well-being of the organism. However, for better survival, it is necessary for the organisms to bring some desirable changes in the genome.

Expert Solution & Answer

Explanation of Solution

A single mutation has got a very large effect on the genome of every organism. Usually, evolutionary changes always results from many mutations with small effects. For bringing some desirable variations in the genetic configuration, it is very necessary that the changes produced should be very stable, variant, and a healthy balance must be followed in-between these two. The rate of mutation also has a significant role in the existence of the respective species; if the rate is too high, it would result in the gradual disappearance of the organisms.

The adaptation of every species that has gone through mutation relies in its fidelity of DNA replication. This is so that any error in the replication will be automatically corrected so that it won’t produce any negative effect to the organism; this is what is called as genetic memory. However, in many cases, it is very essential for the organism to make some changes in a DNA sequence. At these times, desirable changes will be produced as they are very crucial for the survival of the organism. These changes will persist only by selection. If such changes have no significant role, they will not be accumulated and if such changes are devastating, then the organism will die as a result of natural selection.

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 9, Problem 1Q

Summary Introduction

To explain: The reasons why cells go to great lengths of variability to ensure the fidelity of DNA replication.

Introduction: Mutations are the permanent alteration of nucleotide sequences of the genome of a particular organism. It may or may not produce discernible changes in many characters of that particular organism. In some cases, mutations will bring about many desirable changes and many other times, it will affect the well-being of the organism. However, for better survival, it is necessary for the organisms to bring some desirable changes in the genome.

Expert Solution & Answer

Explanation of Solution

A single mutation has got a very large effect on the genome of every organism. Usually, evolutionary changes always results from many mutations with small effects. For bringing some desirable variations in the genetic configuration, it is very necessary that the changes produced should be very stable, variant, and a healthy balance must be followed in-between these two. The rate of mutation also has a significant role in the existence of the respective species; if the rate is too high, it would result in the gradual disappearance of the organisms.

The adaptation of every species that has gone through mutation relies in its fidelity of DNA replication. This is so that any error in the replication will be automatically corrected so that it won’t produce any negative effect to the organism; this is what is called as genetic memory. However, in many cases, it is very essential for the organism to make some changes in a DNA sequence. At these times, desirable changes will be produced as they are very crucial for the survival of the organism. These changes will persist only by selection. If such changes have no significant role, they will not be accumulated and if such changes are devastating, then the organism will die as a result of natural selection.

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 9, Problem 1Q

Summary Introduction

To explain: The reasons why cells go to great lengths of variability to ensure the fidelity of DNA replication.

Introduction: Mutations are the permanent alteration of nucleotide sequences of the genome of a particular organism. It may or may not produce discernible changes in many characters of that particular organism. In some cases, mutations will bring about many desirable changes and many other times, it will affect the well-being of the organism. However, for better survival, it is necessary for the organisms to bring some desirable changes in the genome.

Expert Solution & Answer

Explanation of Solution

A single mutation has got a very large effect on the genome of every organism. Usually, evolutionary changes always results from many mutations with small effects. For bringing some desirable variations in the genetic configuration, it is very necessary that the changes produced should be very stable, variant, and a healthy balance must be followed in-between these two. The rate of mutation also has a significant role in the existence of the respective species; if the rate is too high, it would result in the gradual disappearance of the organisms.

The adaptation of every species that has gone through mutation relies in its fidelity of DNA replication. This is so that any error in the replication will be automatically corrected so that it won’t produce any negative effect to the organism; this is what is called as genetic memory. However, in many cases, it is very essential for the organism to make some changes in a DNA sequence. At these times, desirable changes will be produced as they are very crucial for the survival of the organism. These changes will persist only by selection. If such changes have no significant role, they will not be accumulated and if such changes are devastating, then the organism will die as a result of natural selection.

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 9, Problem 1Q

Summary Introduction

To explain: The reasons why cells go to great lengths of variability to ensure the fidelity of DNA replication.

Introduction: Mutations are the permanent alteration of nucleotide sequences of the genome of a particular organism. It may or may not produce discernible changes in many characters of that particular organism. In some cases, mutations will bring about many desirable changes and many other times, it will affect the well-being of the organism. However, for better survival, it is necessary for the organisms to bring some desirable changes in the genome.

Expert Solution & Answer

Explanation of Solution

A single mutation has got a very large effect on the genome of every organism. Usually, evolutionary changes always results from many mutations with small effects. For bringing some desirable variations in the genetic configuration, it is very necessary that the changes produced should be very stable, variant, and a healthy balance must be followed in-between these two. The rate of mutation also has a significant role in the existence of the respective species; if the rate is too high, it would result in the gradual disappearance of the organisms.

The adaptation of every species that has gone through mutation relies in its fidelity of DNA replication. This is so that any error in the replication will be automatically corrected so that it won’t produce any negative effect to the organism; this is what is called as genetic memory. However, in many cases, it is very essential for the organism to make some changes in a DNA sequence. At these times, desirable changes will be produced as they are very crucial for the survival of the organism. These changes will persist only by selection. If such changes have no significant role, they will not be accumulated and if such changes are devastating, then the organism will die as a result of natural selection.

Answer 6

Chapter 9, Problem 1Q

Summary Introduction

To explain: The reasons why cells go to great lengths of variability to ensure the fidelity of DNA replication.

Introduction: Mutations are the permanent alteration of nucleotide sequences of the genome of a particular organism. It may or may not produce discernible changes in many characters of that particular organism. In some cases, mutations will bring about many desirable changes and many other times, it will affect the well-being of the organism. However, for better survival, it is necessary for the organisms to bring some desirable changes in the genome.

Expert Solution & Answer

Explanation of Solution

A single mutation has got a very large effect on the genome of every organism. Usually, evolutionary changes always results from many mutations with small effects. For bringing some desirable variations in the genetic configuration, it is very necessary that the changes produced should be very stable, variant, and a healthy balance must be followed in-between these two. The rate of mutation also has a significant role in the existence of the respective species; if the rate is too high, it would result in the gradual disappearance of the organisms.

The adaptation of every species that has gone through mutation relies in its fidelity of DNA replication. This is so that any error in the replication will be automatically corrected so that it won’t produce any negative effect to the organism; this is what is called as genetic memory. However, in many cases, it is very essential for the organism to make some changes in a DNA sequence. At these times, desirable changes will be produced as they are very crucial for the survival of the organism. These changes will persist only by selection. If such changes have no significant role, they will not be accumulated and if such changes are devastating, then the organism will die as a result of natural selection.

Answer 7

Chapter 9, Problem 1Q

Summary Introduction

To explain: The reasons why cells go to great lengths of variability to ensure the fidelity of DNA replication.

Introduction: Mutations are the permanent alteration of nucleotide sequences of the genome of a particular organism. It may or may not produce discernible changes in many characters of that particular organism. In some cases, mutations will bring about many desirable changes and many other times, it will affect the well-being of the organism. However, for better survival, it is necessary for the organisms to bring some desirable changes in the genome.

Answer 8

Expert Solution & Answer

Explanation of Solution

A single mutation has got a very large effect on the genome of every organism. Usually, evolutionary changes always results from many mutations with small effects. For bringing some desirable variations in the genetic configuration, it is very necessary that the changes produced should be very stable, variant, and a healthy balance must be followed in-between these two. The rate of mutation also has a significant role in the existence of the respective species; if the rate is too high, it would result in the gradual disappearance of the organisms.

The adaptation of every species that has gone through mutation relies in its fidelity of DNA replication. This is so that any error in the replication will be automatically corrected so that it won’t produce any negative effect to the organism; this is what is called as genetic memory. However, in many cases, it is very essential for the organism to make some changes in a DNA sequence. At these times, desirable changes will be produced as they are very crucial for the survival of the organism. These changes will persist only by selection. If such changes have no significant role, they will not be accumulated and if such changes are devastating, then the organism will die as a result of natural selection.