Campbell Biology in Focus
3rd Edition
ISBN: 9780134710679
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Rebecca Orr
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
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 solutionStudents have asked these similar questions
At this stage of embryogenesis, the plant embryo forms eight cells. In Arabidopsis thaliana,
it is the beginning of radial patterning that is marked by the tangential divisions of the cells
of the embryo proper in the embryo.
A. Octant stage
B. Dermatogen/Protoderm stage
O C. Globular stage
D. Heart stage
A. How is embryogenesis defined in plants?
B. What developmental event can mark the “end” of embryogenesis?
C. Does embryogenesis occur in all plants?
Choose the statement that is true.a. All flowers are pollinated by bees.b. Apple trees are propagated by grafting because they are triploid.c. Carpels function to attract pollinators.d. A coleoptile protects the plumule of eudicot seedlings.e. The arrival of pollen on a receptive seed is called pollination.f. In plants, sperm cells are male gametes.g. Nutrients in fruits nourish new seedlings.
Chapter 30 Solutions
Campbell Biology in Focus
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
Figure 1.18 In the example below, the scientific method is used to solve an everyday problem. Which part in the...
Concepts of Biology
2. Why is it that the range of resting blood pressures of humans is best represented by a bell-shaped curve co...
Human Biology: Concepts and Current Issues (8th Edition)
Single penny tossed 20 times and counting heads and tails: Probability (prediction): _______/20 heads ________/...
Laboratory Manual for Holes Human Anatomy & Physiology Fetal Pig Version
Propose a model for the assembly of a flagellum in a typical Gram-positive cell envelope.
Prescott's Microbiology
Why is it unlikely that two neighboring water molecules would be arranged like this?
Campbell Biology (11th Edition)
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
- The products of budding are a. two cells of equal size. b. two cells, one of which is smaller than the other. c. many cells of equal size. d. many cells of variable size.arrow_forwardWhich of the following statements regarding plants is false?a. Meiosis within anthers produces spores that develop intopollen.b. Meiosis within ovules produces spores that develop into anembryo sac.c. The male gametophyte is a pollen grain, and the femalegametophyte is an embryo sac.d. Meiosis directly produces sperm and egg cells in plantsarrow_forwardAltemate response C. If statement A is correct and B is wrong. D. If statement A is wrong and B is correct. A. f both statements are correct. B. H both statements are wrong. numorous microsporocytes which will undearrow_forward
- 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_forwardWhat is the relationship between pollination and fertilization in flowering plants? Select one: a. Fertilization precedes pollinations. b. If fertilization occurs, pollination would be unnecessary. c. Pollination brings gametophytes together so that fertilization can occur. d. Pollination easily occurs between plants of different species.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
- Caneberries (raspberries and blackberries) develop from... 1.single flower with many ovaries* 2. multiple flowers each with a single small ovary 3. one flower, with one ovary and many tiny 'fruitlets' 4. one flower with many ovaries that each have many small 'fruitlets'arrow_forwardExplain the main steps of sea urchin fertilization. Your answer should emphasis the respective functions of SAPs, Bindin, fertilization cone, cortical granules and fertilization envelopearrow_forwardRefer to the figure. a. What gene mutation(s) will result in the loss of production of the sepals? b. What gene mutation(s) will result in the loss of production of the petals? c. What gene mutation(s) will result in the loss of production of the stamens? d. What gene mutation(s) will result in the loss of production of the carpels?arrow_forward
- Is it true or false? Indicate whether the sentence is true or false. If it's False, explain why it's so in no more than two sentences.a. Abscission of fruits and leaves is one of the major functions of Abscisic acid (ABA).b. During embryo maturation, ABA levels decrease to prevent vivipary.c. ipening of strawberry and pommelo is characterized by an increase in ethylene and a burst of CO2 production.arrow_forwardExplain the events which occur after the process of fertilization in plants.arrow_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