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

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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.

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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.

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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.

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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.

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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...

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Answer to Problem 1TYK

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