Campbell Biology in Focus (2nd Edition)
2nd Edition
ISBN: 9780321962751
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 30, Problem 3TYU
Double fertilization means that
- A. flowers must be pollinated twice to yield fruits and seeds.
- B. B every egg must receive two sperm to produce an embryo
- C. C one sperm is needed to fertilize the egg, and a second sperm is needed to fertilize the polar nuclei.
- D. every sperm has two nuclei
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A. How is embryogenesis defined in plants?
B. What developmental event can mark the “end” of embryogenesis?
C. Does embryogenesis occur in all plants?
Which of the following is not an important component of the slow block to polyspermy
Group of answer choices
A. depolarization of the cell
B. a physical space between the cell membrane and the fertilization envelope
C. hardening of the vitelline layer and jelly coat to form the fertilization envelope
A. An embryo sac (ovule) contains eight haploid nuclei.B. Three nuclei become three synergids, 2 polar nuclei, 3 antipodal nuclei.
A.If statement A is wrong and B is correct.
B.If both statements are wrong.
C.If both statements are correct.
D.If statement A is correct and B is wrong.
Chapter 30 Solutions
Campbell Biology in Focus (2nd Edition)
Ch. 30.1 - WHAT IF? If flowers had shorter styles, pollen...Ch. 30.1 - WHAT IF? In some species, sepals look like petals,...Ch. 30.1 - Prob. 3CCCh. 30.2 - Prob. 1CCCh. 30.2 - Prob. 2CCCh. 30.2 - Self-fertilization, or selfing, seems to have...Ch. 30.3 - Prob. 1CCCh. 30.3 - Why does Bt maize have less fumonisin than non-GM...Ch. 30.3 - WHAT IF? In a few species, chloroplast genes are...Ch. 30 - A seed develops from an A. ovum B. embryo. C....
Ch. 30 - A fruit is a A. mature ovary. B. B . mature ovule....Ch. 30 - Double fertilization means that A. flowers must be...Ch. 30 - Golden Rice A. is resistant to various herbicides,...Ch. 30 - Which statement concerning grafting is correct? A....Ch. 30 - Some dioecious species have the XY genotype for...Ch. 30 - A small flower with green petals is most likely A....Ch. 30 - The pollen produced by wind-pollinated plants is...Ch. 30 - The black dots that cover strawberries are...Ch. 30 - DRAW IT Draw a flower and label the parts.Ch. 30 - SCIENTIFIC INQUIRY Critics of GM foods have argued...Ch. 30 - SCIENCE, TECHNOLOGY, AND SOCIETY People have...Ch. 30 - FOCUS ON EVOLUTION With respect to sexual...Ch. 30 - FOCUS ON ORGANIZATION In a short essay (100-150...Ch. 30 - SYNTHESIZE YOUR KNOWLEDGE This colorized SEM shows...
Additional Science Textbook Solutions
Find more solutions based on key concepts
1. Rub your hands together vigorously. What happens? Discuss the energy transfers and transformations that take...
College Physics: A Strategic Approach (3rd Edition)
To test your knowledge, discuss the following topics with a study partner or in writing ideally from memory. Th...
HUMAN ANATOMY
Gregor Mendel never saw a gene, yet he concluded that some inherited factors were responsible for the patterns ...
Campbell Essential Biology (7th Edition)
4.1 Write the symbols for the following elements.
a. copper
b. platinum
c. calcium
d. manganese
e. Iron
...
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Why do scientists think that all forms of life on earth have a common origin?
Genetics: From Genes to Genomes
Separate the list P,F,V,,T,a,m,L,t, and V into intensive properties, extensive properties, and nonproperties.
Fundamentals Of Thermodynamics
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What are the products of double fertilization?a. Two diploid zygotesb. A diploid zygote and a triploid endospermc. A haploid sperm and a diploid zygoted. A triploid zygotearrow_forwardIn animals, meiosis of germ cells produces gametes. Some plant cells also undergo meiosis, but the resulting cells are not gametes. Explain what the products of plant meiosis are, what they develop into, and how plants produce gametes.arrow_forwardThe megaspore and the microspore mother cellsa. both produce pollen grains.b. both divide meiotically.c. both divide mitotically.d. produce pollen grains and embryo sacs, respectively.e. All of these are correct.arrow_forward
- External fertilization occurs in which type of environment? a. aquatic b. forested c. savanna d. steppearrow_forwardSomites a. begin forming at the tail end of the embryo and then move forward in a wavelike fashion. b. are derived from endoderm. c. develop into only one type of tissue per somite. d. may vary in number from one species to the next.arrow_forwardEgg and sperm cells are... A. Gametes B. Diploid C. Somatic cells D. Zygotesarrow_forward
- elect one: A. Process 1 Which of the processes illustrated above represents fertilization? B. Process 2 Process 3 Process 4 Process 2 Zygote The Life Cycle of the Horse Embryo Process 1 Gametes Process 3 Reproductive organs Process 4arrow_forwardWhat are the correct pairings of developing and embryonic structures in the gastrulation of chickens? a. Epiblast- ectoderm c. Primary hypoblast-endoderm Read the following statements CAREFULLY: I. II. III. IV. b. Secondary hypoblast - endoderm d. Migrating cells - mesoderm The germ band needs to retract for fruit fly segments to develop properly. The formation of the sea urchin archenteron is made possible by epithelial cells that underwent epithelial-to-mesenchymal transition. Frog gastrulation involves the epiboly of endoderm cells. Chicken endoderm and mesoderm is formed through the migration of cells through both the anterior and posterior end of the primitive streak. a. All choices are true b. I & Il are true but IV is false d. IV is sometimes true c. Ill is falsearrow_forwardHumans produce skin cells by mitosis and gametes by meiosis. Which of the following statements about the nuclei of skin cells is correct? a. They contain half as much DNA as the nuclei of gametes produced by meiosis. b. They contain four times as much DNA as the nuclei of gametes produced by meiosis. c. They contain the same amount of DNA as the nuclei of gametes produced by meiosis. d. They contain twice as much DNA as the nuclei of gametes produced by meiosis.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Plant Reproduction in Angiosperms; Author: Amoeba Sisters;https://www.youtube.com/watch?v=HLYPm2idSTE;License: Standard YouTube License, CC-BY