Figure 14.19 At what stage does the diploid zygote form? a. When the female cone begins to bud from the tree b. When the sperm nucleus and the egg nucleus fuse c. When the seeds drop from the tree d. When the pollen tube begins to grow

Question

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Answer 1

Textbook Question

Chapter 14, Problem 1ACQ

Figure 14.19 At what stage does the diploid zygote form?

a. When the female cone begins to bud from the tree

b. When the sperm nucleus and the egg nucleus fuse

c. When the seeds drop from the tree

d. When the pollen tube begins to grow

Chapter 14, Problem 1ACQ, Figure 14.19 At what stage does the diploid zygote form? a. When the female cone begins to bud from

Expert Solution & Answer

Summary Introduction

Introduction:

The terrestrial plants mostly comprise of the small green plant vegetation. It consists of grasses, trees, mosses, ferns, gymnosperms, hornworts. All the land plants have specific reproductive organs. In biology, alternation of generations is also known as heterogenesis or metagenesis. It represents the alternation of an asexual phase and a sexual phase in the life cycle of an organism.

Answer to Problem 1ACQ

Correct answer:

The correct answer is the option (b) when the sperm nucleus and egg nucleus fuse.

Explanation of Solution

Explanation/justification for the correct answer:

The correct option (b) when the sperm nucleus and egg nucleus fuse. Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. It is the phenomenon in which the haploid stages lead to the diploid stage. Hence, the option (b) is correct.

Explanation for incorrect answer:

Option (a) when the female cone starts to bud from the tree. The female cone on budding will produce several megasporocytes. These give rise to a megasporangium (female gamete) in the gymnosperm. The female cones occur on the higher branches of the tree to promote the pollination. Hence, the option (a) is incorrect.

Option (c) when the seed drops from the tree. The seed forms after the effective fertilization. The seed gets dispersed by several means that germinate and produce a new plant. Hence, the option (c) is incorrect.

Option (d) when the pollen tube starts to grow. The pollen tube is a hollow tube-like structure that runs through the style of a female reproductive system in a flower. It carries two sperm cells that take part in the double fertilization process. Hence, the option (d) is incorrect.

Conclusion

Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. Hence, the option (b) is correct.

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Students have asked these similar questions

Imagine you are a botanist. Below are characteristics of a never-before described plant species recently identified as part of the ‘All Taxa Biodiversity Inventory’ (ATBI). Field Notes: Specimen collected from shaded area along stream in South Cumberland State Park (Grundy County, TN). Laboratory Analysis: Body: Large leaves emerging from underground rhizome. Size: 63 cm Chromosomal Analysis: Plant body is diploid—chromosome number of 44. Lignin test: Positive Cuticle: Present Leaves: Present—large with branched veins. Underside has sori (containing haploid spores). Roots: Present—branch from the inside. Stem: Present—vascular tissue (xylem & phloem) present. Life History: Diploid sporophyte dominant generation. Haploid spores germinate into heart-shaped, haploid, gametophyte. Water required for fertilization; no seed is produced. Diploid zygote develops into sporophyte. Explain which domain, kingdom and phylum you believe this plant should be classified…

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Answer 2

Textbook Question

Chapter 14, Problem 1ACQ

Figure 14.19 At what stage does the diploid zygote form?

a. When the female cone begins to bud from the tree

b. When the sperm nucleus and the egg nucleus fuse

c. When the seeds drop from the tree

d. When the pollen tube begins to grow

Chapter 14, Problem 1ACQ, Figure 14.19 At what stage does the diploid zygote form? a. When the female cone begins to bud from

Expert Solution & Answer

Summary Introduction

Introduction:

The terrestrial plants mostly comprise of the small green plant vegetation. It consists of grasses, trees, mosses, ferns, gymnosperms, hornworts. All the land plants have specific reproductive organs. In biology, alternation of generations is also known as heterogenesis or metagenesis. It represents the alternation of an asexual phase and a sexual phase in the life cycle of an organism.

Answer to Problem 1ACQ

Correct answer:

The correct answer is the option (b) when the sperm nucleus and egg nucleus fuse.

Explanation of Solution

Explanation/justification for the correct answer:

The correct option (b) when the sperm nucleus and egg nucleus fuse. Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. It is the phenomenon in which the haploid stages lead to the diploid stage. Hence, the option (b) is correct.

Explanation for incorrect answer:

Option (a) when the female cone starts to bud from the tree. The female cone on budding will produce several megasporocytes. These give rise to a megasporangium (female gamete) in the gymnosperm. The female cones occur on the higher branches of the tree to promote the pollination. Hence, the option (a) is incorrect.

Option (c) when the seed drops from the tree. The seed forms after the effective fertilization. The seed gets dispersed by several means that germinate and produce a new plant. Hence, the option (c) is incorrect.

Option (d) when the pollen tube starts to grow. The pollen tube is a hollow tube-like structure that runs through the style of a female reproductive system in a flower. It carries two sperm cells that take part in the double fertilization process. Hence, the option (d) is incorrect.

Conclusion

Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. Hence, the option (b) is correct.

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Answer 3

Textbook Question

Chapter 14, Problem 1ACQ

Figure 14.19 At what stage does the diploid zygote form?

a. When the female cone begins to bud from the tree

b. When the sperm nucleus and the egg nucleus fuse

c. When the seeds drop from the tree

d. When the pollen tube begins to grow

Chapter 14, Problem 1ACQ, Figure 14.19 At what stage does the diploid zygote form? a. When the female cone begins to bud from

Expert Solution & Answer

Summary Introduction

Introduction:

The terrestrial plants mostly comprise of the small green plant vegetation. It consists of grasses, trees, mosses, ferns, gymnosperms, hornworts. All the land plants have specific reproductive organs. In biology, alternation of generations is also known as heterogenesis or metagenesis. It represents the alternation of an asexual phase and a sexual phase in the life cycle of an organism.

Answer to Problem 1ACQ

Correct answer:

The correct answer is the option (b) when the sperm nucleus and egg nucleus fuse.

Explanation of Solution

Explanation/justification for the correct answer:

The correct option (b) when the sperm nucleus and egg nucleus fuse. Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. It is the phenomenon in which the haploid stages lead to the diploid stage. Hence, the option (b) is correct.

Explanation for incorrect answer:

Option (a) when the female cone starts to bud from the tree. The female cone on budding will produce several megasporocytes. These give rise to a megasporangium (female gamete) in the gymnosperm. The female cones occur on the higher branches of the tree to promote the pollination. Hence, the option (a) is incorrect.

Option (c) when the seed drops from the tree. The seed forms after the effective fertilization. The seed gets dispersed by several means that germinate and produce a new plant. Hence, the option (c) is incorrect.

Option (d) when the pollen tube starts to grow. The pollen tube is a hollow tube-like structure that runs through the style of a female reproductive system in a flower. It carries two sperm cells that take part in the double fertilization process. Hence, the option (d) is incorrect.

Conclusion

Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. Hence, the option (b) is correct.

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Answer 4

Textbook Question

Chapter 14, Problem 1ACQ

Figure 14.19 At what stage does the diploid zygote form?

a. When the female cone begins to bud from the tree

b. When the sperm nucleus and the egg nucleus fuse

c. When the seeds drop from the tree

d. When the pollen tube begins to grow

Chapter 14, Problem 1ACQ, Figure 14.19 At what stage does the diploid zygote form? a. When the female cone begins to bud from

Expert Solution & Answer

Summary Introduction

Introduction:

The terrestrial plants mostly comprise of the small green plant vegetation. It consists of grasses, trees, mosses, ferns, gymnosperms, hornworts. All the land plants have specific reproductive organs. In biology, alternation of generations is also known as heterogenesis or metagenesis. It represents the alternation of an asexual phase and a sexual phase in the life cycle of an organism.

Answer to Problem 1ACQ

Correct answer:

The correct answer is the option (b) when the sperm nucleus and egg nucleus fuse.

Explanation of Solution

Explanation/justification for the correct answer:

The correct option (b) when the sperm nucleus and egg nucleus fuse. Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. It is the phenomenon in which the haploid stages lead to the diploid stage. Hence, the option (b) is correct.

Explanation for incorrect answer:

Option (a) when the female cone starts to bud from the tree. The female cone on budding will produce several megasporocytes. These give rise to a megasporangium (female gamete) in the gymnosperm. The female cones occur on the higher branches of the tree to promote the pollination. Hence, the option (a) is incorrect.

Option (c) when the seed drops from the tree. The seed forms after the effective fertilization. The seed gets dispersed by several means that germinate and produce a new plant. Hence, the option (c) is incorrect.

Option (d) when the pollen tube starts to grow. The pollen tube is a hollow tube-like structure that runs through the style of a female reproductive system in a flower. It carries two sperm cells that take part in the double fertilization process. Hence, the option (d) is incorrect.

Conclusion

Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. Hence, the option (b) is correct.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

Introduction:

The terrestrial plants mostly comprise of the small green plant vegetation. It consists of grasses, trees, mosses, ferns, gymnosperms, hornworts. All the land plants have specific reproductive organs. In biology, alternation of generations is also known as heterogenesis or metagenesis. It represents the alternation of an asexual phase and a sexual phase in the life cycle of an organism.

Answer to Problem 1ACQ

Correct answer:

The correct answer is the option (b) when the sperm nucleus and egg nucleus fuse.

Explanation of Solution

Explanation/justification for the correct answer:

The correct option (b) when the sperm nucleus and egg nucleus fuse. Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. It is the phenomenon in which the haploid stages lead to the diploid stage. Hence, the option (b) is correct.

Explanation for incorrect answer:

Option (a) when the female cone starts to bud from the tree. The female cone on budding will produce several megasporocytes. These give rise to a megasporangium (female gamete) in the gymnosperm. The female cones occur on the higher branches of the tree to promote the pollination. Hence, the option (a) is incorrect.

Option (c) when the seed drops from the tree. The seed forms after the effective fertilization. The seed gets dispersed by several means that germinate and produce a new plant. Hence, the option (c) is incorrect.

Option (d) when the pollen tube starts to grow. The pollen tube is a hollow tube-like structure that runs through the style of a female reproductive system in a flower. It carries two sperm cells that take part in the double fertilization process. Hence, the option (d) is incorrect.

Conclusion

Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. Hence, the option (b) is correct.

Answer 8

Expert Solution & Answer

Summary Introduction

Introduction:

The terrestrial plants mostly comprise of the small green plant vegetation. It consists of grasses, trees, mosses, ferns, gymnosperms, hornworts. All the land plants have specific reproductive organs. In biology, alternation of generations is also known as heterogenesis or metagenesis. It represents the alternation of an asexual phase and a sexual phase in the life cycle of an organism.

Answer to Problem 1ACQ

Correct answer:

The correct answer is the option (b) when the sperm nucleus and egg nucleus fuse.

Explanation of Solution

Explanation/justification for the correct answer:

The correct option (b) when the sperm nucleus and egg nucleus fuse. Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. It is the phenomenon in which the haploid stages lead to the diploid stage. Hence, the option (b) is correct.

Explanation for incorrect answer:

Option (a) when the female cone starts to bud from the tree. The female cone on budding will produce several megasporocytes. These give rise to a megasporangium (female gamete) in the gymnosperm. The female cones occur on the higher branches of the tree to promote the pollination. Hence, the option (a) is incorrect.

Option (c) when the seed drops from the tree. The seed forms after the effective fertilization. The seed gets dispersed by several means that germinate and produce a new plant. Hence, the option (c) is incorrect.

Option (d) when the pollen tube starts to grow. The pollen tube is a hollow tube-like structure that runs through the style of a female reproductive system in a flower. It carries two sperm cells that take part in the double fertilization process. Hence, the option (d) is incorrect.

Conclusion

Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. Hence, the option (b) is correct.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

Introduction:

The terrestrial plants mostly comprise of the small green plant vegetation. It consists of grasses, trees, mosses, ferns, gymnosperms, hornworts. All the land plants have specific reproductive organs. In biology, alternation of generations is also known as heterogenesis or metagenesis. It represents the alternation of an asexual phase and a sexual phase in the life cycle of an organism.

Answer 12

Answer to Problem 1ACQ

Correct answer:

The correct answer is the option (b) when the sperm nucleus and egg nucleus fuse.

Answer 13

Explanation of Solution

Explanation/justification for the correct answer:

The correct option (b) when the sperm nucleus and egg nucleus fuse. Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. It is the phenomenon in which the haploid stages lead to the diploid stage. Hence, the option (b) is correct.

Explanation for incorrect answer:

Option (a) when the female cone starts to bud from the tree. The female cone on budding will produce several megasporocytes. These give rise to a megasporangium (female gamete) in the gymnosperm. The female cones occur on the higher branches of the tree to promote the pollination. Hence, the option (a) is incorrect.

Option (c) when the seed drops from the tree. The seed forms after the effective fertilization. The seed gets dispersed by several means that germinate and produce a new plant. Hence, the option (c) is incorrect.

Option (d) when the pollen tube starts to grow. The pollen tube is a hollow tube-like structure that runs through the style of a female reproductive system in a flower. It carries two sperm cells that take part in the double fertilization process. Hence, the option (d) is incorrect.

Answer 14

Conclusion

Fertilization is the process in which the fusion of haploid microsporangium or sperm nucleus and megasporangium or female nucleus takes place to form a diploid zygote. Hence, the option (b) is correct.