What happens when double fertilization occurs? a. Two zygotes are formed, but only one survives. b. Two sperm fertilize the egg, forming a triploid zygote. c. One sperm fertilizes the egg, while another sperm fuses with the polar nuclei. d. One sperm fertilizes the egg, while two other sperm fuse with a polar nucleus.

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

Chapter 38, Problem 1TYK

What happens when double fertilization occurs?

a. Two zygotes are formed, but only one survives.

b. Two sperm fertilize the egg, forming a triploid zygote.

c. One sperm fertilizes the egg, while another sperm fuses with the polar nuclei.

d. One sperm fertilizes the egg, while two other sperm fuse with a polar nucleus.

Expert Solution & Answer

Summary Introduction

Introduction:

Double fertilization is a complex fertilization that occurs in the flowering plants (angiosperms). This gives rise to endosperm apart from the zygote.

Answer to Problem 1TYK

Correct answer:

Double fertilization is a mechanism where one sperm fertilizes the egg and another sperm fuses with the polar nuclei.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that double fertilization occurs when one sperm fuses with an egg and another sperm fuses with the polar nuclei. One of the sperm fuses with the egg cell and forms a diploid zygote, while the other sperm fuses with the two polar nuclei and forms a triploid cell. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that double fertilization occurs when two zygotes are formed, but only one survives. Only one zygote is formed in double fertilization. So, it is a wrong answer.

Option (b) is given that double fertilization occurs when two sperms fertilize the egg, forming a triploid zygote. One of the sperm fertilizes the egg and other one fuses with the two polar nuclei. Both of them do not fertilize the egg. So, it is a wrong answer.

Option (d) is given that double fertilization occurs when one sperm fertilizes the egg, while two other sperm fuse with a polar nucleus. This process does not involve three sperm. Only two sperm are required: one sperm fuses with the egg and another one with the polar nuclei. So, it is a wrong answer.

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

Conclusion

Thus, double fertilization is a process that involves the fertilization of the female gametophyte with one male gamete and fusion of another male gamete with the polar nuclei.

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

What is the relationship between a primary spermatocyteand a spermatogonium?a. They are genetically identical.b. The spermatocyte is haploid and the spermatogonium is diploid.c. The spermatocyte has a flagellum; the spermatogonium does not.d. Both b and c are correct

Which mechanism prevents an ovum from being fertilized by multiple sperm cells? A. Once a sperm penetrates the jelly-like coating of the egg, no other sperm cell can penetrate the coating. B. When a sperm fuses with the plasma membrane of the egg, depolarization of the membrane occurs. C. The egg can survive in the Fallopian tube for 24 hours s it does not have mitochondria to produce energy. D. When more than a single sperm cell fuses with the plasma membrane, multiple zygotes can form, leading to the twin or triplets.

How do you expect Kartagener syndrome leads to infertility? A. The lack of a plasma membrane means that pathogens and foreign substances can permeate the sperm and damage the DNA B. The lack of microtubules mean the sperm do not have tails and cannot swim to fertilize the egg C. The lack of dynein means that the sperm cannot bend their tails to swim and fertilize the egg

Answer 2

Textbook Question

Chapter 38, Problem 1TYK

What happens when double fertilization occurs?

a. Two zygotes are formed, but only one survives.

b. Two sperm fertilize the egg, forming a triploid zygote.

c. One sperm fertilizes the egg, while another sperm fuses with the polar nuclei.

d. One sperm fertilizes the egg, while two other sperm fuse with a polar nucleus.

Expert Solution & Answer

Summary Introduction

Introduction:

Double fertilization is a complex fertilization that occurs in the flowering plants (angiosperms). This gives rise to endosperm apart from the zygote.

Answer to Problem 1TYK

Correct answer:

Double fertilization is a mechanism where one sperm fertilizes the egg and another sperm fuses with the polar nuclei.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that double fertilization occurs when one sperm fuses with an egg and another sperm fuses with the polar nuclei. One of the sperm fuses with the egg cell and forms a diploid zygote, while the other sperm fuses with the two polar nuclei and forms a triploid cell. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that double fertilization occurs when two zygotes are formed, but only one survives. Only one zygote is formed in double fertilization. So, it is a wrong answer.

Option (b) is given that double fertilization occurs when two sperms fertilize the egg, forming a triploid zygote. One of the sperm fertilizes the egg and other one fuses with the two polar nuclei. Both of them do not fertilize the egg. So, it is a wrong answer.

Option (d) is given that double fertilization occurs when one sperm fertilizes the egg, while two other sperm fuse with a polar nucleus. This process does not involve three sperm. Only two sperm are required: one sperm fuses with the egg and another one with the polar nuclei. So, it is a wrong answer.

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

Conclusion

Thus, double fertilization is a process that involves the fertilization of the female gametophyte with one male gamete and fusion of another male gamete with the polar nuclei.

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

Textbook Question

Chapter 38, Problem 1TYK

What happens when double fertilization occurs?

a. Two zygotes are formed, but only one survives.

b. Two sperm fertilize the egg, forming a triploid zygote.

c. One sperm fertilizes the egg, while another sperm fuses with the polar nuclei.

d. One sperm fertilizes the egg, while two other sperm fuse with a polar nucleus.

Expert Solution & Answer

Summary Introduction

Introduction:

Double fertilization is a complex fertilization that occurs in the flowering plants (angiosperms). This gives rise to endosperm apart from the zygote.

Answer to Problem 1TYK

Correct answer:

Double fertilization is a mechanism where one sperm fertilizes the egg and another sperm fuses with the polar nuclei.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that double fertilization occurs when one sperm fuses with an egg and another sperm fuses with the polar nuclei. One of the sperm fuses with the egg cell and forms a diploid zygote, while the other sperm fuses with the two polar nuclei and forms a triploid cell. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that double fertilization occurs when two zygotes are formed, but only one survives. Only one zygote is formed in double fertilization. So, it is a wrong answer.

Option (b) is given that double fertilization occurs when two sperms fertilize the egg, forming a triploid zygote. One of the sperm fertilizes the egg and other one fuses with the two polar nuclei. Both of them do not fertilize the egg. So, it is a wrong answer.

Option (d) is given that double fertilization occurs when one sperm fertilizes the egg, while two other sperm fuse with a polar nucleus. This process does not involve three sperm. Only two sperm are required: one sperm fuses with the egg and another one with the polar nuclei. So, it is a wrong answer.

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

Conclusion

Thus, double fertilization is a process that involves the fertilization of the female gametophyte with one male gamete and fusion of another male gamete with the polar nuclei.

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

Textbook Question

Chapter 38, Problem 1TYK

What happens when double fertilization occurs?

a. Two zygotes are formed, but only one survives.

b. Two sperm fertilize the egg, forming a triploid zygote.

c. One sperm fertilizes the egg, while another sperm fuses with the polar nuclei.

d. One sperm fertilizes the egg, while two other sperm fuse with a polar nucleus.

Expert Solution & Answer

Summary Introduction

Introduction:

Double fertilization is a complex fertilization that occurs in the flowering plants (angiosperms). This gives rise to endosperm apart from the zygote.

Answer to Problem 1TYK

Correct answer:

Double fertilization is a mechanism where one sperm fertilizes the egg and another sperm fuses with the polar nuclei.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that double fertilization occurs when one sperm fuses with an egg and another sperm fuses with the polar nuclei. One of the sperm fuses with the egg cell and forms a diploid zygote, while the other sperm fuses with the two polar nuclei and forms a triploid cell. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that double fertilization occurs when two zygotes are formed, but only one survives. Only one zygote is formed in double fertilization. So, it is a wrong answer.

Option (b) is given that double fertilization occurs when two sperms fertilize the egg, forming a triploid zygote. One of the sperm fertilizes the egg and other one fuses with the two polar nuclei. Both of them do not fertilize the egg. So, it is a wrong answer.

Option (d) is given that double fertilization occurs when one sperm fertilizes the egg, while two other sperm fuse with a polar nucleus. This process does not involve three sperm. Only two sperm are required: one sperm fuses with the egg and another one with the polar nuclei. So, it is a wrong answer.

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

Conclusion

Thus, double fertilization is a process that involves the fertilization of the female gametophyte with one male gamete and fusion of another male gamete with the polar nuclei.

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

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

Double fertilization is a complex fertilization that occurs in the flowering plants (angiosperms). This gives rise to endosperm apart from the zygote.

Answer to Problem 1TYK

Correct answer:

Double fertilization is a mechanism where one sperm fertilizes the egg and another sperm fuses with the polar nuclei.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that double fertilization occurs when one sperm fuses with an egg and another sperm fuses with the polar nuclei. One of the sperm fuses with the egg cell and forms a diploid zygote, while the other sperm fuses with the two polar nuclei and forms a triploid cell. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that double fertilization occurs when two zygotes are formed, but only one survives. Only one zygote is formed in double fertilization. So, it is a wrong answer.

Option (b) is given that double fertilization occurs when two sperms fertilize the egg, forming a triploid zygote. One of the sperm fertilizes the egg and other one fuses with the two polar nuclei. Both of them do not fertilize the egg. So, it is a wrong answer.

Option (d) is given that double fertilization occurs when one sperm fertilizes the egg, while two other sperm fuse with a polar nucleus. This process does not involve three sperm. Only two sperm are required: one sperm fuses with the egg and another one with the polar nuclei. So, it is a wrong answer.

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

Conclusion

Thus, double fertilization is a process that involves the fertilization of the female gametophyte with one male gamete and fusion of another male gamete with the polar nuclei.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

Double fertilization is a complex fertilization that occurs in the flowering plants (angiosperms). This gives rise to endosperm apart from the zygote.

Answer to Problem 1TYK

Correct answer:

Double fertilization is a mechanism where one sperm fertilizes the egg and another sperm fuses with the polar nuclei.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that double fertilization occurs when one sperm fuses with an egg and another sperm fuses with the polar nuclei. One of the sperm fuses with the egg cell and forms a diploid zygote, while the other sperm fuses with the two polar nuclei and forms a triploid cell. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that double fertilization occurs when two zygotes are formed, but only one survives. Only one zygote is formed in double fertilization. So, it is a wrong answer.

Option (b) is given that double fertilization occurs when two sperms fertilize the egg, forming a triploid zygote. One of the sperm fertilizes the egg and other one fuses with the two polar nuclei. Both of them do not fertilize the egg. So, it is a wrong answer.

Option (d) is given that double fertilization occurs when one sperm fertilizes the egg, while two other sperm fuse with a polar nucleus. This process does not involve three sperm. Only two sperm are required: one sperm fuses with the egg and another one with the polar nuclei. So, it is a wrong answer.

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

Conclusion

Thus, double fertilization is a process that involves the fertilization of the female gametophyte with one male gamete and fusion of another male gamete with the polar nuclei.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

Double fertilization is a complex fertilization that occurs in the flowering plants (angiosperms). This gives rise to endosperm apart from the zygote.

Answer 12

Answer to Problem 1TYK

Correct answer:

Double fertilization is a mechanism where one sperm fertilizes the egg and another sperm fuses with the polar nuclei.

Answer 13

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that double fertilization occurs when one sperm fuses with an egg and another sperm fuses with the polar nuclei. One of the sperm fuses with the egg cell and forms a diploid zygote, while the other sperm fuses with the two polar nuclei and forms a triploid cell. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that double fertilization occurs when two zygotes are formed, but only one survives. Only one zygote is formed in double fertilization. So, it is a wrong answer.

Option (b) is given that double fertilization occurs when two sperms fertilize the egg, forming a triploid zygote. One of the sperm fertilizes the egg and other one fuses with the two polar nuclei. Both of them do not fertilize the egg. So, it is a wrong answer.

Option (d) is given that double fertilization occurs when one sperm fertilizes the egg, while two other sperm fuse with a polar nucleus. This process does not involve three sperm. Only two sperm are required: one sperm fuses with the egg and another one with the polar nuclei. So, it is a wrong answer.

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

Answer 14

Conclusion

Thus, double fertilization is a process that involves the fertilization of the female gametophyte with one male gamete and fusion of another male gamete with the polar nuclei.

Answer 15

Ch. 38 - 1. What happens when double fertilization...Ch. 38 - 2. CAUTION In angiosperms, are sperm and eggs...Ch. 38 - Prob. 3TYK Ch. 38 - Prob. 4TYK Ch. 38 - 5. Why is the emergence of the radicle an...Ch. 38 - What are the advantages and disadvantages of...Ch. 38 - Prob. 7TYU Ch. 38 - Prob. 8TYU Ch. 38 - Prob. 9TYPSS Ch. 38 - 10. MODEL Make a sketch of a simplified flower...

Concept explainers

Videos

Answer to Problem 1TYK

Explanation of Solution

Want to see more full solutions like this?

Chapter 38 Solutions