To draw: A pathway of signal transduction including a ligand, receptor and a transcription factor that activates a gene that inhibits the receptor. Concept Introduction: Cell signaling involves a ligand, an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecule. Inhibition refers to stop any reaction.

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Answer 1

Question

Chapter 19.5, Problem 13SAQ

Summary Introduction

To draw:

A pathway of signal transduction including a ligand, receptor and a transcription factor that activates a gene that inhibits the receptor.

Concept Introduction:

Cell signaling involves a ligand, an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecule. Inhibition refers to stop any reaction.

Expert Solution & Answer

Explanation of Solution

Pictorial representation:

Fig 1: Pathway of signal transduction.

BIOLOGY:HOW...ACCESS-W/FLYER (48 MO.) , Chapter 19.5, Problem 13SAQ

Fig 1: Pathway of signal transduction.

Explanation:

Signal transduction stands for a group of reactions that occur when a molecule such as hormone attaches to the receptor of cells. Signal transduction has three stages:

1. Reception: a protein molecule (ligand) primary messenger will detect chemical signals. Binding of ligand to receptor occur in this step.

2. Transduction: this will occur with the help of secondary messenger which will help in the stimulation of cells or some changes will take place in the cell.

3. Cellular responses: these can either be positive or negative. If the responses are positive then, it will activate some reactions and if they are negative then, they will inhibit the reactions.

Changes in gene expression occur because of the activation or inhibition.

Conclusion

In this cell signaling is done by using ligand. A ligand is an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecules present in the membrane.

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Students have asked these similar questions

You aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?

You decide to delete Fgf4 and Fgf8 specifically in the limb bud. Explain why you would not knock out these genes in the entire embryo instead.

You implant an FGF10-coated bead into the anterior flank of a chicken embryo, directly below the level of the wing bud. What is the phenotype of the resulting ectopic limb? Briefly describe the expected expression domains of 1) Shh, 2) Tbx4, and 3) Tbx5 in the resulting ectopic limb bud.

Answer 2

Question

Chapter 19.5, Problem 13SAQ

Summary Introduction

To draw:

A pathway of signal transduction including a ligand, receptor and a transcription factor that activates a gene that inhibits the receptor.

Concept Introduction:

Cell signaling involves a ligand, an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecule. Inhibition refers to stop any reaction.

Expert Solution & Answer

Explanation of Solution

Pictorial representation:

Fig 1: Pathway of signal transduction.

BIOLOGY:HOW...ACCESS-W/FLYER (48 MO.) , Chapter 19.5, Problem 13SAQ

Fig 1: Pathway of signal transduction.

Explanation:

Signal transduction stands for a group of reactions that occur when a molecule such as hormone attaches to the receptor of cells. Signal transduction has three stages:

1. Reception: a protein molecule (ligand) primary messenger will detect chemical signals. Binding of ligand to receptor occur in this step.

2. Transduction: this will occur with the help of secondary messenger which will help in the stimulation of cells or some changes will take place in the cell.

3. Cellular responses: these can either be positive or negative. If the responses are positive then, it will activate some reactions and if they are negative then, they will inhibit the reactions.

Changes in gene expression occur because of the activation or inhibition.

Conclusion

In this cell signaling is done by using ligand. A ligand is an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecules present in the membrane.

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Answer 3

Question

Chapter 19.5, Problem 13SAQ

Summary Introduction

To draw:

A pathway of signal transduction including a ligand, receptor and a transcription factor that activates a gene that inhibits the receptor.

Concept Introduction:

Cell signaling involves a ligand, an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecule. Inhibition refers to stop any reaction.

Expert Solution & Answer

Explanation of Solution

Pictorial representation:

Fig 1: Pathway of signal transduction.

BIOLOGY:HOW...ACCESS-W/FLYER (48 MO.) , Chapter 19.5, Problem 13SAQ

Fig 1: Pathway of signal transduction.

Explanation:

Signal transduction stands for a group of reactions that occur when a molecule such as hormone attaches to the receptor of cells. Signal transduction has three stages:

1. Reception: a protein molecule (ligand) primary messenger will detect chemical signals. Binding of ligand to receptor occur in this step.

2. Transduction: this will occur with the help of secondary messenger which will help in the stimulation of cells or some changes will take place in the cell.

3. Cellular responses: these can either be positive or negative. If the responses are positive then, it will activate some reactions and if they are negative then, they will inhibit the reactions.

Changes in gene expression occur because of the activation or inhibition.

Conclusion

In this cell signaling is done by using ligand. A ligand is an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecules present in the membrane.

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Answer 4

Question

Chapter 19.5, Problem 13SAQ

Summary Introduction

To draw:

A pathway of signal transduction including a ligand, receptor and a transcription factor that activates a gene that inhibits the receptor.

Concept Introduction:

Cell signaling involves a ligand, an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecule. Inhibition refers to stop any reaction.

Expert Solution & Answer

Explanation of Solution

Pictorial representation:

Fig 1: Pathway of signal transduction.

BIOLOGY:HOW...ACCESS-W/FLYER (48 MO.) , Chapter 19.5, Problem 13SAQ

Fig 1: Pathway of signal transduction.

Explanation:

Signal transduction stands for a group of reactions that occur when a molecule such as hormone attaches to the receptor of cells. Signal transduction has three stages:

1. Reception: a protein molecule (ligand) primary messenger will detect chemical signals. Binding of ligand to receptor occur in this step.

2. Transduction: this will occur with the help of secondary messenger which will help in the stimulation of cells or some changes will take place in the cell.

3. Cellular responses: these can either be positive or negative. If the responses are positive then, it will activate some reactions and if they are negative then, they will inhibit the reactions.

Changes in gene expression occur because of the activation or inhibition.

Conclusion

In this cell signaling is done by using ligand. A ligand is an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecules present in the membrane.

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Answer 5

Chapter 19.5, Problem 13SAQ

Summary Introduction

To draw:

A pathway of signal transduction including a ligand, receptor and a transcription factor that activates a gene that inhibits the receptor.

Concept Introduction:

Cell signaling involves a ligand, an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecule. Inhibition refers to stop any reaction.

Expert Solution & Answer

Explanation of Solution

Pictorial representation:

Fig 1: Pathway of signal transduction.

BIOLOGY:HOW...ACCESS-W/FLYER (48 MO.) , Chapter 19.5, Problem 13SAQ

Fig 1: Pathway of signal transduction.

Explanation:

Signal transduction stands for a group of reactions that occur when a molecule such as hormone attaches to the receptor of cells. Signal transduction has three stages:

1. Reception: a protein molecule (ligand) primary messenger will detect chemical signals. Binding of ligand to receptor occur in this step.

2. Transduction: this will occur with the help of secondary messenger which will help in the stimulation of cells or some changes will take place in the cell.

3. Cellular responses: these can either be positive or negative. If the responses are positive then, it will activate some reactions and if they are negative then, they will inhibit the reactions.

Changes in gene expression occur because of the activation or inhibition.

Conclusion

In this cell signaling is done by using ligand. A ligand is an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecules present in the membrane.

Answer 6

Chapter 19.5, Problem 13SAQ

Summary Introduction

To draw:

A pathway of signal transduction including a ligand, receptor and a transcription factor that activates a gene that inhibits the receptor.

Concept Introduction:

Cell signaling involves a ligand, an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecule. Inhibition refers to stop any reaction.

Expert Solution & Answer

Explanation of Solution

Pictorial representation:

Fig 1: Pathway of signal transduction.

BIOLOGY:HOW...ACCESS-W/FLYER (48 MO.) , Chapter 19.5, Problem 13SAQ

Fig 1: Pathway of signal transduction.

Explanation:

Signal transduction stands for a group of reactions that occur when a molecule such as hormone attaches to the receptor of cells. Signal transduction has three stages:

1. Reception: a protein molecule (ligand) primary messenger will detect chemical signals. Binding of ligand to receptor occur in this step.

2. Transduction: this will occur with the help of secondary messenger which will help in the stimulation of cells or some changes will take place in the cell.

3. Cellular responses: these can either be positive or negative. If the responses are positive then, it will activate some reactions and if they are negative then, they will inhibit the reactions.

Changes in gene expression occur because of the activation or inhibition.

Conclusion

In this cell signaling is done by using ligand. A ligand is an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecules present in the membrane.

Answer 7

Chapter 19.5, Problem 13SAQ

Summary Introduction

To draw:

A pathway of signal transduction including a ligand, receptor and a transcription factor that activates a gene that inhibits the receptor.

Concept Introduction:

Cell signaling involves a ligand, an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecule. Inhibition refers to stop any reaction.

Answer 8

Expert Solution & Answer

Explanation of Solution

Pictorial representation:

Fig 1: Pathway of signal transduction.

BIOLOGY:HOW...ACCESS-W/FLYER (48 MO.) , Chapter 19.5, Problem 13SAQ

Fig 1: Pathway of signal transduction.

Explanation:

Signal transduction stands for a group of reactions that occur when a molecule such as hormone attaches to the receptor of cells. Signal transduction has three stages:

1. Reception: a protein molecule (ligand) primary messenger will detect chemical signals. Binding of ligand to receptor occur in this step.

2. Transduction: this will occur with the help of secondary messenger which will help in the stimulation of cells or some changes will take place in the cell.

3. Cellular responses: these can either be positive or negative. If the responses are positive then, it will activate some reactions and if they are negative then, they will inhibit the reactions.

Changes in gene expression occur because of the activation or inhibition.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Conclusion

In this cell signaling is done by using ligand. A ligand is an extracellular molecule that acts as a signal to activate a membrane receptor protein which in turn, inhibits or activates the molecules present in the membrane.

Answer 12

Ch. 19.1 - Prob. 1SAQ Ch. 19.1 - Prob. 2SAQ Ch. 19.1 - Prob. 3SAQ Ch. 19.1 - Prob. 4SAQ Ch. 19.2 - Prob. 5SAQ Ch. 19.2 - Prob. 6SAQ Ch. 19.2 - Prob. 7SAQ Ch. 19.2 - Prob. 8SAQ Ch. 19.3 - Prob. 9SAQ Ch. 19.3 - Prob. 10SAQ

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