The function of bindin in fertilization. Introduction: Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

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Answer 1

Question

Chapter 23, Problem 1TYK

Summary Introduction

To review:

The function of bindin in fertilization.

Introduction:

Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

Expert Solution & Answer

Explanation of Solution

In the case of aquatic animals, fertilization (fusion of egg and sperm) is external that is fertilization takes place in open sea water, not inside the body. Problem with this type of fertilization is sperm and egg of many aquatic animals are exposed in the same seawater. So cross-fertilization may occur.

In order to produce a viable embryo, the sperm of one species must recognize egg of its own species. In 1970, Victor Vacquier isolated a 30,500-Da protein from the Strongylocentrotus purpuratus acrosome and found it to be able of binding to the eggs belonging to same species. He also found out Bindin isolated from other sea urchin species are indeed different. This protein prevents cross-fertilization and is species specific.

The vitelline envelope of the egg has a specific receptor or binding site for acrosomal bindin. These receptors can differentiate between bindin of two closely related species (same genus). so, the sperm of one specific species can only bind to the egg of same species. This way aquatic animals like sea urchin prevent cross-fertilization and help in species-specific egg and sperm recognition and fusion.

Conclusion

Therefore, it can be concluded that the cross-fertilization is the big problem in the case of animals that practice external fertilization. To prevent this a species-specific protein called bindin present in the acrosome of the sperm and its specific receptors are present in the egg of the same species. This way sperm of one species can only fertilize the egg on its own species.

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Answer 2

Question

Chapter 23, Problem 1TYK

Summary Introduction

To review:

The function of bindin in fertilization.

Introduction:

Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

Expert Solution & Answer

Explanation of Solution

In the case of aquatic animals, fertilization (fusion of egg and sperm) is external that is fertilization takes place in open sea water, not inside the body. Problem with this type of fertilization is sperm and egg of many aquatic animals are exposed in the same seawater. So cross-fertilization may occur.

In order to produce a viable embryo, the sperm of one species must recognize egg of its own species. In 1970, Victor Vacquier isolated a 30,500-Da protein from the Strongylocentrotus purpuratus acrosome and found it to be able of binding to the eggs belonging to same species. He also found out Bindin isolated from other sea urchin species are indeed different. This protein prevents cross-fertilization and is species specific.

The vitelline envelope of the egg has a specific receptor or binding site for acrosomal bindin. These receptors can differentiate between bindin of two closely related species (same genus). so, the sperm of one specific species can only bind to the egg of same species. This way aquatic animals like sea urchin prevent cross-fertilization and help in species-specific egg and sperm recognition and fusion.

Conclusion

Therefore, it can be concluded that the cross-fertilization is the big problem in the case of animals that practice external fertilization. To prevent this a species-specific protein called bindin present in the acrosome of the sperm and its specific receptors are present in the egg of the same species. This way sperm of one species can only fertilize the egg on its own species.

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Answer 3

Question

Chapter 23, Problem 1TYK

Summary Introduction

To review:

The function of bindin in fertilization.

Introduction:

Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

Expert Solution & Answer

Explanation of Solution

In the case of aquatic animals, fertilization (fusion of egg and sperm) is external that is fertilization takes place in open sea water, not inside the body. Problem with this type of fertilization is sperm and egg of many aquatic animals are exposed in the same seawater. So cross-fertilization may occur.

In order to produce a viable embryo, the sperm of one species must recognize egg of its own species. In 1970, Victor Vacquier isolated a 30,500-Da protein from the Strongylocentrotus purpuratus acrosome and found it to be able of binding to the eggs belonging to same species. He also found out Bindin isolated from other sea urchin species are indeed different. This protein prevents cross-fertilization and is species specific.

The vitelline envelope of the egg has a specific receptor or binding site for acrosomal bindin. These receptors can differentiate between bindin of two closely related species (same genus). so, the sperm of one specific species can only bind to the egg of same species. This way aquatic animals like sea urchin prevent cross-fertilization and help in species-specific egg and sperm recognition and fusion.

Conclusion

Therefore, it can be concluded that the cross-fertilization is the big problem in the case of animals that practice external fertilization. To prevent this a species-specific protein called bindin present in the acrosome of the sperm and its specific receptors are present in the egg of the same species. This way sperm of one species can only fertilize the egg on its own species.

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Answer 4

Question

Chapter 23, Problem 1TYK

Summary Introduction

To review:

The function of bindin in fertilization.

Introduction:

Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

Expert Solution & Answer

Explanation of Solution

In the case of aquatic animals, fertilization (fusion of egg and sperm) is external that is fertilization takes place in open sea water, not inside the body. Problem with this type of fertilization is sperm and egg of many aquatic animals are exposed in the same seawater. So cross-fertilization may occur.

In order to produce a viable embryo, the sperm of one species must recognize egg of its own species. In 1970, Victor Vacquier isolated a 30,500-Da protein from the Strongylocentrotus purpuratus acrosome and found it to be able of binding to the eggs belonging to same species. He also found out Bindin isolated from other sea urchin species are indeed different. This protein prevents cross-fertilization and is species specific.

The vitelline envelope of the egg has a specific receptor or binding site for acrosomal bindin. These receptors can differentiate between bindin of two closely related species (same genus). so, the sperm of one specific species can only bind to the egg of same species. This way aquatic animals like sea urchin prevent cross-fertilization and help in species-specific egg and sperm recognition and fusion.

Conclusion

Therefore, it can be concluded that the cross-fertilization is the big problem in the case of animals that practice external fertilization. To prevent this a species-specific protein called bindin present in the acrosome of the sperm and its specific receptors are present in the egg of the same species. This way sperm of one species can only fertilize the egg on its own species.

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Answer 5

Chapter 23, Problem 1TYK

Summary Introduction

To review:

The function of bindin in fertilization.

Introduction:

Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

Expert Solution & Answer

Explanation of Solution

In the case of aquatic animals, fertilization (fusion of egg and sperm) is external that is fertilization takes place in open sea water, not inside the body. Problem with this type of fertilization is sperm and egg of many aquatic animals are exposed in the same seawater. So cross-fertilization may occur.

In order to produce a viable embryo, the sperm of one species must recognize egg of its own species. In 1970, Victor Vacquier isolated a 30,500-Da protein from the Strongylocentrotus purpuratus acrosome and found it to be able of binding to the eggs belonging to same species. He also found out Bindin isolated from other sea urchin species are indeed different. This protein prevents cross-fertilization and is species specific.

The vitelline envelope of the egg has a specific receptor or binding site for acrosomal bindin. These receptors can differentiate between bindin of two closely related species (same genus). so, the sperm of one specific species can only bind to the egg of same species. This way aquatic animals like sea urchin prevent cross-fertilization and help in species-specific egg and sperm recognition and fusion.

Conclusion

Therefore, it can be concluded that the cross-fertilization is the big problem in the case of animals that practice external fertilization. To prevent this a species-specific protein called bindin present in the acrosome of the sperm and its specific receptors are present in the egg of the same species. This way sperm of one species can only fertilize the egg on its own species.

Answer 6

Chapter 23, Problem 1TYK

Summary Introduction

To review:

The function of bindin in fertilization.

Introduction:

Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

Expert Solution & Answer

Explanation of Solution

In the case of aquatic animals, fertilization (fusion of egg and sperm) is external that is fertilization takes place in open sea water, not inside the body. Problem with this type of fertilization is sperm and egg of many aquatic animals are exposed in the same seawater. So cross-fertilization may occur.

In order to produce a viable embryo, the sperm of one species must recognize egg of its own species. In 1970, Victor Vacquier isolated a 30,500-Da protein from the Strongylocentrotus purpuratus acrosome and found it to be able of binding to the eggs belonging to same species. He also found out Bindin isolated from other sea urchin species are indeed different. This protein prevents cross-fertilization and is species specific.

The vitelline envelope of the egg has a specific receptor or binding site for acrosomal bindin. These receptors can differentiate between bindin of two closely related species (same genus). so, the sperm of one specific species can only bind to the egg of same species. This way aquatic animals like sea urchin prevent cross-fertilization and help in species-specific egg and sperm recognition and fusion.

Conclusion

Therefore, it can be concluded that the cross-fertilization is the big problem in the case of animals that practice external fertilization. To prevent this a species-specific protein called bindin present in the acrosome of the sperm and its specific receptors are present in the egg of the same species. This way sperm of one species can only fertilize the egg on its own species.

Answer 7

Chapter 23, Problem 1TYK

Summary Introduction

To review:

The function of bindin in fertilization.

Introduction:

Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

Answer 8

Expert Solution & Answer

Explanation of Solution

In the case of aquatic animals, fertilization (fusion of egg and sperm) is external that is fertilization takes place in open sea water, not inside the body. Problem with this type of fertilization is sperm and egg of many aquatic animals are exposed in the same seawater. So cross-fertilization may occur.

In order to produce a viable embryo, the sperm of one species must recognize egg of its own species. In 1970, Victor Vacquier isolated a 30,500-Da protein from the Strongylocentrotus purpuratus acrosome and found it to be able of binding to the eggs belonging to same species. He also found out Bindin isolated from other sea urchin species are indeed different. This protein prevents cross-fertilization and is species specific.

The vitelline envelope of the egg has a specific receptor or binding site for acrosomal bindin. These receptors can differentiate between bindin of two closely related species (same genus). so, the sperm of one specific species can only bind to the egg of same species. This way aquatic animals like sea urchin prevent cross-fertilization and help in species-specific egg and sperm recognition and fusion.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

Therefore, it can be concluded that the cross-fertilization is the big problem in the case of animals that practice external fertilization. To prevent this a species-specific protein called bindin present in the acrosome of the sperm and its specific receptors are present in the egg of the same species. This way sperm of one species can only fertilize the egg on its own species.

Answer 12

Ch. 23 - Prob. 1TYK Ch. 23 - 2. How is calcium signaling involved in blocking...Ch. 23 - Prob. 3TYK Ch. 23 - Prob. 4TYK Ch. 23 - Prob. 5TYK Ch. 23 - Which of the following does not occur during...Ch. 23 - Prob. 7TYU Ch. 23 - Prob. 8TYU Ch. 23 - Prob. 9TYU Ch. 23 - 10. Plants depend on directional cell expansion...

The function of bindin in fertilization. Introduction: Bindin is a protein that presents in the acrosome of the sperm of many aquatic animals, for example, sea urchin. This protein has a role in species-specific sperm-egg recognition. Moreover, bindin plays a central role in fertilization process.

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