Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Question

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Answer 1

Question

Chapter 53, Problem 1U

Summary Introduction

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Expert Solution & Answer

Answer to Problem 1U

Correct answer:

“The events which occur immediately after fertilization is egg activation, polyspermy defense, cytoplasm changes”. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Before fertilization, the egg remains in an inactive state until the sperm reach the egg and fertilization process takes place. The fusion of sperm with egg membrane trigger in the rush of Ca2+ ion that reactivates the egg metabolism. After fertilization, to prevent the polyspermy, the egg changes its membrane potential for short period of time that prevents the further fusion of sperms. To prevent polyspermy egg also changes its cytoplasmic content which helps in development of fertilization envelope. The additional sperm cannot penetrate through this fertilization envelope.

Option d. is given as “All of these occur after fertilization”.

As, “after fertilization the events that take place is egg activation, polyspermy defense and cytoplasm changes” is the right answer.

Hence, the option d. is correct.

Reasons for the incorrect statements:

Option a. is given as “Egg activation”.

The fusion of sperm with the egg membrane triggers the reactivation of egg metabolism is an event occur after fertilization. But after fertilization other events like polyspermy defense, cytoplasm change also occurs. So, it is a wrong answer.

Option b. is given as “Polyspermy defense”.

To prevent the polyspermy is an event that occurs after fertilization. But after fertilization other events like egg activation and change in cytoplasmic content also occurs. So, it is a wrong answer.

Option c. is given as “Cytoplasm changes”.

After fertilization, the egg changes its cytoplasmic content to prevent the polyspermy. But other events like egg activation and polyspermy defense also occurs. So, it is a wrong answer.

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

Conclusion

The events that occur after fertilization are egg activation, polyspermy defense and cytoplasm changes.

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Answer 2

Question

Chapter 53, Problem 1U

Summary Introduction

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Expert Solution & Answer

Answer to Problem 1U

Correct answer:

“The events which occur immediately after fertilization is egg activation, polyspermy defense, cytoplasm changes”. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Before fertilization, the egg remains in an inactive state until the sperm reach the egg and fertilization process takes place. The fusion of sperm with egg membrane trigger in the rush of Ca2+ ion that reactivates the egg metabolism. After fertilization, to prevent the polyspermy, the egg changes its membrane potential for short period of time that prevents the further fusion of sperms. To prevent polyspermy egg also changes its cytoplasmic content which helps in development of fertilization envelope. The additional sperm cannot penetrate through this fertilization envelope.

Option d. is given as “All of these occur after fertilization”.

As, “after fertilization the events that take place is egg activation, polyspermy defense and cytoplasm changes” is the right answer.

Hence, the option d. is correct.

Reasons for the incorrect statements:

Option a. is given as “Egg activation”.

The fusion of sperm with the egg membrane triggers the reactivation of egg metabolism is an event occur after fertilization. But after fertilization other events like polyspermy defense, cytoplasm change also occurs. So, it is a wrong answer.

Option b. is given as “Polyspermy defense”.

To prevent the polyspermy is an event that occurs after fertilization. But after fertilization other events like egg activation and change in cytoplasmic content also occurs. So, it is a wrong answer.

Option c. is given as “Cytoplasm changes”.

After fertilization, the egg changes its cytoplasmic content to prevent the polyspermy. But other events like egg activation and polyspermy defense also occurs. So, it is a wrong answer.

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

Conclusion

The events that occur after fertilization are egg activation, polyspermy defense and cytoplasm changes.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 53, Problem 1U

Summary Introduction

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Expert Solution & Answer

Answer to Problem 1U

Correct answer:

“The events which occur immediately after fertilization is egg activation, polyspermy defense, cytoplasm changes”. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Before fertilization, the egg remains in an inactive state until the sperm reach the egg and fertilization process takes place. The fusion of sperm with egg membrane trigger in the rush of Ca2+ ion that reactivates the egg metabolism. After fertilization, to prevent the polyspermy, the egg changes its membrane potential for short period of time that prevents the further fusion of sperms. To prevent polyspermy egg also changes its cytoplasmic content which helps in development of fertilization envelope. The additional sperm cannot penetrate through this fertilization envelope.

Option d. is given as “All of these occur after fertilization”.

As, “after fertilization the events that take place is egg activation, polyspermy defense and cytoplasm changes” is the right answer.

Hence, the option d. is correct.

Reasons for the incorrect statements:

Option a. is given as “Egg activation”.

The fusion of sperm with the egg membrane triggers the reactivation of egg metabolism is an event occur after fertilization. But after fertilization other events like polyspermy defense, cytoplasm change also occurs. So, it is a wrong answer.

Option b. is given as “Polyspermy defense”.

To prevent the polyspermy is an event that occurs after fertilization. But after fertilization other events like egg activation and change in cytoplasmic content also occurs. So, it is a wrong answer.

Option c. is given as “Cytoplasm changes”.

After fertilization, the egg changes its cytoplasmic content to prevent the polyspermy. But other events like egg activation and polyspermy defense also occurs. So, it is a wrong answer.

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

Conclusion

The events that occur after fertilization are egg activation, polyspermy defense and cytoplasm changes.

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 53, Problem 1U

Summary Introduction

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Expert Solution & Answer

Answer to Problem 1U

Correct answer:

“The events which occur immediately after fertilization is egg activation, polyspermy defense, cytoplasm changes”. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Before fertilization, the egg remains in an inactive state until the sperm reach the egg and fertilization process takes place. The fusion of sperm with egg membrane trigger in the rush of Ca2+ ion that reactivates the egg metabolism. After fertilization, to prevent the polyspermy, the egg changes its membrane potential for short period of time that prevents the further fusion of sperms. To prevent polyspermy egg also changes its cytoplasmic content which helps in development of fertilization envelope. The additional sperm cannot penetrate through this fertilization envelope.

Option d. is given as “All of these occur after fertilization”.

As, “after fertilization the events that take place is egg activation, polyspermy defense and cytoplasm changes” is the right answer.

Hence, the option d. is correct.

Reasons for the incorrect statements:

Option a. is given as “Egg activation”.

The fusion of sperm with the egg membrane triggers the reactivation of egg metabolism is an event occur after fertilization. But after fertilization other events like polyspermy defense, cytoplasm change also occurs. So, it is a wrong answer.

Option b. is given as “Polyspermy defense”.

To prevent the polyspermy is an event that occurs after fertilization. But after fertilization other events like egg activation and change in cytoplasmic content also occurs. So, it is a wrong answer.

Option c. is given as “Cytoplasm changes”.

After fertilization, the egg changes its cytoplasmic content to prevent the polyspermy. But other events like egg activation and polyspermy defense also occurs. So, it is a wrong answer.

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

Conclusion

The events that occur after fertilization are egg activation, polyspermy defense and cytoplasm changes.

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 53, Problem 1U

Summary Introduction

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Expert Solution & Answer

Answer to Problem 1U

Correct answer:

“The events which occur immediately after fertilization is egg activation, polyspermy defense, cytoplasm changes”. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Before fertilization, the egg remains in an inactive state until the sperm reach the egg and fertilization process takes place. The fusion of sperm with egg membrane trigger in the rush of Ca2+ ion that reactivates the egg metabolism. After fertilization, to prevent the polyspermy, the egg changes its membrane potential for short period of time that prevents the further fusion of sperms. To prevent polyspermy egg also changes its cytoplasmic content which helps in development of fertilization envelope. The additional sperm cannot penetrate through this fertilization envelope.

Option d. is given as “All of these occur after fertilization”.

As, “after fertilization the events that take place is egg activation, polyspermy defense and cytoplasm changes” is the right answer.

Hence, the option d. is correct.

Reasons for the incorrect statements:

Option a. is given as “Egg activation”.

The fusion of sperm with the egg membrane triggers the reactivation of egg metabolism is an event occur after fertilization. But after fertilization other events like polyspermy defense, cytoplasm change also occurs. So, it is a wrong answer.

Option b. is given as “Polyspermy defense”.

To prevent the polyspermy is an event that occurs after fertilization. But after fertilization other events like egg activation and change in cytoplasmic content also occurs. So, it is a wrong answer.

Option c. is given as “Cytoplasm changes”.

After fertilization, the egg changes its cytoplasmic content to prevent the polyspermy. But other events like egg activation and polyspermy defense also occurs. So, it is a wrong answer.

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

Conclusion

The events that occur after fertilization are egg activation, polyspermy defense and cytoplasm changes.

Answer 6

Chapter 53, Problem 1U

Summary Introduction

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Expert Solution & Answer

Answer to Problem 1U

Correct answer:

“The events which occur immediately after fertilization is egg activation, polyspermy defense, cytoplasm changes”. Therefore, option d. is correct.

Explanation of Solution

Reason for the correct statement:

Before fertilization, the egg remains in an inactive state until the sperm reach the egg and fertilization process takes place. The fusion of sperm with egg membrane trigger in the rush of Ca2+ ion that reactivates the egg metabolism. After fertilization, to prevent the polyspermy, the egg changes its membrane potential for short period of time that prevents the further fusion of sperms. To prevent polyspermy egg also changes its cytoplasmic content which helps in development of fertilization envelope. The additional sperm cannot penetrate through this fertilization envelope.

Option d. is given as “All of these occur after fertilization”.

As, “after fertilization the events that take place is egg activation, polyspermy defense and cytoplasm changes” is the right answer.

Hence, the option d. is correct.

Reasons for the incorrect statements:

Option a. is given as “Egg activation”.

The fusion of sperm with the egg membrane triggers the reactivation of egg metabolism is an event occur after fertilization. But after fertilization other events like polyspermy defense, cytoplasm change also occurs. So, it is a wrong answer.

Option b. is given as “Polyspermy defense”.

To prevent the polyspermy is an event that occurs after fertilization. But after fertilization other events like egg activation and change in cytoplasmic content also occurs. So, it is a wrong answer.

Option c. is given as “Cytoplasm changes”.

After fertilization, the egg changes its cytoplasmic content to prevent the polyspermy. But other events like egg activation and polyspermy defense also occurs. So, it is a wrong answer.

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

Conclusion

The events that occur after fertilization are egg activation, polyspermy defense and cytoplasm changes.

Answer 7

Chapter 53, Problem 1U

Summary Introduction

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Answer 8

Expert Solution & Answer

Answer to Problem 1U

Correct answer:

“The events which occur immediately after fertilization is egg activation, polyspermy defense, cytoplasm changes”. 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:

Before fertilization, the egg remains in an inactive state until the sperm reach the egg and fertilization process takes place. The fusion of sperm with egg membrane trigger in the rush of Ca2+ ion that reactivates the egg metabolism. After fertilization, to prevent the polyspermy, the egg changes its membrane potential for short period of time that prevents the further fusion of sperms. To prevent polyspermy egg also changes its cytoplasmic content which helps in development of fertilization envelope. The additional sperm cannot penetrate through this fertilization envelope.

Option d. is given as “All of these occur after fertilization”.

As, “after fertilization the events that take place is egg activation, polyspermy defense and cytoplasm changes” is the right answer.

Hence, the option d. is correct.

Reasons for the incorrect statements:

Option a. is given as “Egg activation”.

The fusion of sperm with the egg membrane triggers the reactivation of egg metabolism is an event occur after fertilization. But after fertilization other events like polyspermy defense, cytoplasm change also occurs. So, it is a wrong answer.

Option b. is given as “Polyspermy defense”.

To prevent the polyspermy is an event that occurs after fertilization. But after fertilization other events like egg activation and change in cytoplasmic content also occurs. So, it is a wrong answer.

Option c. is given as “Cytoplasm changes”.

After fertilization, the egg changes its cytoplasmic content to prevent the polyspermy. But other events like egg activation and polyspermy defense also occurs. So, it is a wrong answer.

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

Answer 12

Conclusion

The events that occur after fertilization are egg activation, polyspermy defense and cytoplasm changes.

Answer 13

Ch. 53 - Prob. 1U Ch. 53 - Which of the following plays the greatest role in...Ch. 53 - Gastrulation is a critical event during...Ch. 53 - Gastrulation in a mammal would be most similar to...Ch. 53 - Of the following processes, which occurs last? a....Ch. 53 - Which of the following would qualify as a...Ch. 53 - Prob. 1A Ch. 53 - In the Spemann experiment, when the dorsal lip is...Ch. 53 - Suppose that a burst of electromagnetic radiation...Ch. 53 - Prob. 4A

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Solution Summary: The author explains that egg activation, polyspermy defense, and cytoplasm changes occur immediately after fertilization.

Videos

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Answer to Problem 1U

Explanation of Solution

Want to see more full solutions like this?

Chapter 53 Solutions

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Solution Summary: The author explains that egg activation, polyspermy defense, and cytoplasm changes occur immediately after fertilization.

Videos

Introduction: Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.

Answer to Problem 1U

Explanation of Solution

Want to see more full solutions like this?

Chapter 53 Solutions

Introduction:

Fertilization is a process in which haploid male gamete (sperm) fuses with the haploid female gamete (egg or ovum) that result in the formation of diploid zygote. The zygote further develops into blastula, gastrula that later results in the formation of an embryo.