The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 20, Problem 1A

Summary Introduction

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The proto-oncogenes are present inside the normal cells and initiate the process of cell cycle, division and mitosis. The tumor suppressor genes inhibit the process of cell division and proliferation of the cells. Therefore, option (d) is correct.

Explanation of Solution

Reason for the correct statement:

The proto-oncogenes synthesize a protein, which activates the process of cell cycle, proliferation and cell signaling. The tumor suppressor genes inhibit the process of cell cycle and proliferation.

Option (d) is given as “proto-oncogenes; tumor suppressor genes”.

“Normally in a noncancer cell, proto-oncogenes stimulate the cell cycle, and tumor suppressor genes inhibit the cell cycle”, it is the right answer.

Hence, option (d) is correct.

Reasons for the incorrect statements:

Option (a) is given as “tumor suppressor genes; oncogenes”.
The tumor specific genes inhibit the process of cell cycle and proliferation, whereas oncogenes activate the process of cell signaling in the cancerous cells. They are formed after the mutation of the proto-oncogenes. So, it is a wrong answer.

Option (b) is given as “oncogenes; tumor suppressor genes”.
The oncogenes activate the process of cell signaling in the cancer cells. The tumor suppressor cells inhibit the process of cell cycle proliferation and cell division. So, it is a wrong answer.

Option (c) is given as “proto-oncogenes; oncogenes”.
The proto-oncogenes are present in the normal cells and activate the process of cell cycle. The oncogenes are present in the cancerous cells and activate the process of cell signaling. So, it is a wrong answer.

Hence, options (a), (b) and (c) are incorrect.

Conclusion

The proto-oncogenes activate the process of cell division and cell proliferation in the normal cells, whereas the tumor suppressor genes inhibit the process of cell proliferation, cell cycle and division.

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

Normal dive (for diving humans) normal breathing dive normal breathing Oz level CO2 level urgent need to breathe Oz blackout zone high CO2 triggers breathing 6. This diagram shows rates of oxygen depletion and carbon dioxide accumulation in the blood in relation to the levels needed to maintain consciousness and trigger the urgent need to breathe in diving humans. How might the location and slope of the O₂ line differ for diving marine mammals such as whales and dolphins? • How might the location and slope of the CO₂ line differ for diving marine mammals such as whales and dolphins? • • Draw in predicted lines for O2 and CO2, based on your reasoning above. How might the location of the Urgent Need to Breathe line and the O2 Blackout Zone line differ for diving marine mammals? What physiological mechanisms account for each of these differences, resulting in the ability of marine mammals to stay submerged for long periods of time?

foraging/diet type teeth tongue stomach intestines cecum Insectivory numerous, spiky, incisors procumbentExample: moleExample: shrew -- simple short mostly lacking Myrmecophagy absent or reduced in numbers, peg-likeExample: tamandua anteater extremely long simple, often roughened short small or lacking Terrestrial carnivory sharp incisors; long, conical canines; often carnassial cheek teeth; may have crushing molarsExample: dog -- simple short small Aquatic carnivory homodont, spiky, numerousExample: common dolphin -- simple or multichambered (cetaceans only) variable small or absent Sanguinivory very sharp upper incisors; reduced cheek teethExample: vampire bat grooved tubular, highly extensible long small or lacking Herbivory (except nectivores) incisors robust or absent; canines reduced or absent; diastema; cheek teeth enlarged with complex occlusal surfacesExample: beaver -- simple (hindgut fermenters) or multichambered (ruminants) long large Filter feeding none…

3. Shown below is the dental formula and digestive tract anatomy of three mammalian species (A, B, and C). What kind of diet would you expect each species to have? Support your answers with what you can infer from the dental formula and what you can see in the diagram. Broadly speaking, what accounts for the differences? Species A 3/3, 1/1, 4/4, 3/3 པར『ན་ cm 30 Species B 4/3, 1/1, 2/2, 4/4 cm 10 Species C 0/4, 0/0,3/3, 3/3 020

Answer 2

Question

Chapter 20, Problem 1A

Summary Introduction

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The proto-oncogenes are present inside the normal cells and initiate the process of cell cycle, division and mitosis. The tumor suppressor genes inhibit the process of cell division and proliferation of the cells. Therefore, option (d) is correct.

Explanation of Solution

Reason for the correct statement:

The proto-oncogenes synthesize a protein, which activates the process of cell cycle, proliferation and cell signaling. The tumor suppressor genes inhibit the process of cell cycle and proliferation.

Option (d) is given as “proto-oncogenes; tumor suppressor genes”.

“Normally in a noncancer cell, proto-oncogenes stimulate the cell cycle, and tumor suppressor genes inhibit the cell cycle”, it is the right answer.

Hence, option (d) is correct.

Reasons for the incorrect statements:

Option (a) is given as “tumor suppressor genes; oncogenes”.
The tumor specific genes inhibit the process of cell cycle and proliferation, whereas oncogenes activate the process of cell signaling in the cancerous cells. They are formed after the mutation of the proto-oncogenes. So, it is a wrong answer.

Option (b) is given as “oncogenes; tumor suppressor genes”.
The oncogenes activate the process of cell signaling in the cancer cells. The tumor suppressor cells inhibit the process of cell cycle proliferation and cell division. So, it is a wrong answer.

Option (c) is given as “proto-oncogenes; oncogenes”.
The proto-oncogenes are present in the normal cells and activate the process of cell cycle. The oncogenes are present in the cancerous cells and activate the process of cell signaling. So, it is a wrong answer.

Hence, options (a), (b) and (c) are incorrect.

Conclusion

The proto-oncogenes activate the process of cell division and cell proliferation in the normal cells, whereas the tumor suppressor genes inhibit the process of cell proliferation, cell cycle and division.

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 20, Problem 1A

Summary Introduction

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The proto-oncogenes are present inside the normal cells and initiate the process of cell cycle, division and mitosis. The tumor suppressor genes inhibit the process of cell division and proliferation of the cells. Therefore, option (d) is correct.

Explanation of Solution

Reason for the correct statement:

The proto-oncogenes synthesize a protein, which activates the process of cell cycle, proliferation and cell signaling. The tumor suppressor genes inhibit the process of cell cycle and proliferation.

Option (d) is given as “proto-oncogenes; tumor suppressor genes”.

“Normally in a noncancer cell, proto-oncogenes stimulate the cell cycle, and tumor suppressor genes inhibit the cell cycle”, it is the right answer.

Hence, option (d) is correct.

Reasons for the incorrect statements:

Option (a) is given as “tumor suppressor genes; oncogenes”.
The tumor specific genes inhibit the process of cell cycle and proliferation, whereas oncogenes activate the process of cell signaling in the cancerous cells. They are formed after the mutation of the proto-oncogenes. So, it is a wrong answer.

Option (b) is given as “oncogenes; tumor suppressor genes”.
The oncogenes activate the process of cell signaling in the cancer cells. The tumor suppressor cells inhibit the process of cell cycle proliferation and cell division. So, it is a wrong answer.

Option (c) is given as “proto-oncogenes; oncogenes”.
The proto-oncogenes are present in the normal cells and activate the process of cell cycle. The oncogenes are present in the cancerous cells and activate the process of cell signaling. So, it is a wrong answer.

Hence, options (a), (b) and (c) are incorrect.

Conclusion

The proto-oncogenes activate the process of cell division and cell proliferation in the normal cells, whereas the tumor suppressor genes inhibit the process of cell proliferation, cell cycle and division.

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 20, Problem 1A

Summary Introduction

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The proto-oncogenes are present inside the normal cells and initiate the process of cell cycle, division and mitosis. The tumor suppressor genes inhibit the process of cell division and proliferation of the cells. Therefore, option (d) is correct.

Explanation of Solution

Reason for the correct statement:

The proto-oncogenes synthesize a protein, which activates the process of cell cycle, proliferation and cell signaling. The tumor suppressor genes inhibit the process of cell cycle and proliferation.

Option (d) is given as “proto-oncogenes; tumor suppressor genes”.

“Normally in a noncancer cell, proto-oncogenes stimulate the cell cycle, and tumor suppressor genes inhibit the cell cycle”, it is the right answer.

Hence, option (d) is correct.

Reasons for the incorrect statements:

Option (a) is given as “tumor suppressor genes; oncogenes”.
The tumor specific genes inhibit the process of cell cycle and proliferation, whereas oncogenes activate the process of cell signaling in the cancerous cells. They are formed after the mutation of the proto-oncogenes. So, it is a wrong answer.

Option (b) is given as “oncogenes; tumor suppressor genes”.
The oncogenes activate the process of cell signaling in the cancer cells. The tumor suppressor cells inhibit the process of cell cycle proliferation and cell division. So, it is a wrong answer.

Option (c) is given as “proto-oncogenes; oncogenes”.
The proto-oncogenes are present in the normal cells and activate the process of cell cycle. The oncogenes are present in the cancerous cells and activate the process of cell signaling. So, it is a wrong answer.

Hence, options (a), (b) and (c) are incorrect.

Conclusion

The proto-oncogenes activate the process of cell division and cell proliferation in the normal cells, whereas the tumor suppressor genes inhibit the process of cell proliferation, cell cycle and division.

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 20, Problem 1A

Summary Introduction

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The proto-oncogenes are present inside the normal cells and initiate the process of cell cycle, division and mitosis. The tumor suppressor genes inhibit the process of cell division and proliferation of the cells. Therefore, option (d) is correct.

Explanation of Solution

Reason for the correct statement:

The proto-oncogenes synthesize a protein, which activates the process of cell cycle, proliferation and cell signaling. The tumor suppressor genes inhibit the process of cell cycle and proliferation.

Option (d) is given as “proto-oncogenes; tumor suppressor genes”.

“Normally in a noncancer cell, proto-oncogenes stimulate the cell cycle, and tumor suppressor genes inhibit the cell cycle”, it is the right answer.

Hence, option (d) is correct.

Reasons for the incorrect statements:

Option (a) is given as “tumor suppressor genes; oncogenes”.
The tumor specific genes inhibit the process of cell cycle and proliferation, whereas oncogenes activate the process of cell signaling in the cancerous cells. They are formed after the mutation of the proto-oncogenes. So, it is a wrong answer.

Option (b) is given as “oncogenes; tumor suppressor genes”.
The oncogenes activate the process of cell signaling in the cancer cells. The tumor suppressor cells inhibit the process of cell cycle proliferation and cell division. So, it is a wrong answer.

Option (c) is given as “proto-oncogenes; oncogenes”.
The proto-oncogenes are present in the normal cells and activate the process of cell cycle. The oncogenes are present in the cancerous cells and activate the process of cell signaling. So, it is a wrong answer.

Hence, options (a), (b) and (c) are incorrect.

Conclusion

The proto-oncogenes activate the process of cell division and cell proliferation in the normal cells, whereas the tumor suppressor genes inhibit the process of cell proliferation, cell cycle and division.

Answer 6

Chapter 20, Problem 1A

Summary Introduction

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The proto-oncogenes are present inside the normal cells and initiate the process of cell cycle, division and mitosis. The tumor suppressor genes inhibit the process of cell division and proliferation of the cells. Therefore, option (d) is correct.

Explanation of Solution

Reason for the correct statement:

The proto-oncogenes synthesize a protein, which activates the process of cell cycle, proliferation and cell signaling. The tumor suppressor genes inhibit the process of cell cycle and proliferation.

Option (d) is given as “proto-oncogenes; tumor suppressor genes”.

“Normally in a noncancer cell, proto-oncogenes stimulate the cell cycle, and tumor suppressor genes inhibit the cell cycle”, it is the right answer.

Hence, option (d) is correct.

Reasons for the incorrect statements:

Option (a) is given as “tumor suppressor genes; oncogenes”.
The tumor specific genes inhibit the process of cell cycle and proliferation, whereas oncogenes activate the process of cell signaling in the cancerous cells. They are formed after the mutation of the proto-oncogenes. So, it is a wrong answer.

Option (b) is given as “oncogenes; tumor suppressor genes”.
The oncogenes activate the process of cell signaling in the cancer cells. The tumor suppressor cells inhibit the process of cell cycle proliferation and cell division. So, it is a wrong answer.

Option (c) is given as “proto-oncogenes; oncogenes”.
The proto-oncogenes are present in the normal cells and activate the process of cell cycle. The oncogenes are present in the cancerous cells and activate the process of cell signaling. So, it is a wrong answer.

Hence, options (a), (b) and (c) are incorrect.

Conclusion

The proto-oncogenes activate the process of cell division and cell proliferation in the normal cells, whereas the tumor suppressor genes inhibit the process of cell proliferation, cell cycle and division.

Answer 7

Chapter 20, Problem 1A

Summary Introduction

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Answer 8

Expert Solution & Answer

Answer to Problem 1A

Correct answer:

The proto-oncogenes are present inside the normal cells and initiate the process of cell cycle, division and mitosis. The tumor suppressor genes inhibit the process of cell division and proliferation of the cells. Therefore, option (d) is correct.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Reason for the correct statement:

The proto-oncogenes synthesize a protein, which activates the process of cell cycle, proliferation and cell signaling. The tumor suppressor genes inhibit the process of cell cycle and proliferation.

Option (d) is given as “proto-oncogenes; tumor suppressor genes”.

“Normally in a noncancer cell, proto-oncogenes stimulate the cell cycle, and tumor suppressor genes inhibit the cell cycle”, it is the right answer.

Hence, option (d) is correct.

Reasons for the incorrect statements:

Option (a) is given as “tumor suppressor genes; oncogenes”.
The tumor specific genes inhibit the process of cell cycle and proliferation, whereas oncogenes activate the process of cell signaling in the cancerous cells. They are formed after the mutation of the proto-oncogenes. So, it is a wrong answer.

Option (b) is given as “oncogenes; tumor suppressor genes”.
The oncogenes activate the process of cell signaling in the cancer cells. The tumor suppressor cells inhibit the process of cell cycle proliferation and cell division. So, it is a wrong answer.

Option (c) is given as “proto-oncogenes; oncogenes”.
The proto-oncogenes are present in the normal cells and activate the process of cell cycle. The oncogenes are present in the cancerous cells and activate the process of cell signaling. So, it is a wrong answer.

Hence, options (a), (b) and (c) are incorrect.

Answer 12

Conclusion

The proto-oncogenes activate the process of cell division and cell proliferation in the normal cells, whereas the tumor suppressor genes inhibit the process of cell proliferation, cell cycle and division.

Answer 13

Ch. 20.1 - Descrihe the characteristics of cancer cells that...Ch. 20.1 - Prob. 2LO Ch. 20.1 - Prob. 3LO Ch. 20.1 - Prob. 1BMS Ch. 20.1 - Prob. 2BMS Ch. 20.2 - Prob. 1LO Ch. 20.2 - Prob. 2LO Ch. 20.2 - Summarize how protective behaviors and diet can...Ch. 20.2 - Prob. 1BMH Ch. 20.2 - Prob. 2BMH

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Videos

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Answer to Problem 1A

Explanation of Solution

Want to see more full solutions like this?

Chapter 20 Solutions

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Videos

Introduction: The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.

Answer to Problem 1A

Explanation of Solution

Want to see more full solutions like this?

Chapter 20 Solutions

Introduction:

The proto-oncogenes are proteins which are present in the normal cell. These proteins activate the process of the cell cycle and division leading to the proliferation of the cells. The tumor suppressor proteins inhibit the cell cycle and proliferation of the cells.