Biology - Study Guide
8th Edition
ISBN: 9780321501561
Author: Martha R. Taylor
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 38, Problem 14TYK
Summary Introduction
Introduction: Self-incompatibility is the mechanism that occurs in flowering plants (
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Students have asked these similar questions
A. What is double fertilization?
B. What are the products of double fertilization?
C. Explain the following quote “As an individual, the endosperm is unique as it has three ancestors and never leaves any descendants.” What are the three ancestors referred to in this quote? And why endosperm does not leave any descendants?
What 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.
Suppose that 100 pollen grains land on a stigma, and 50 mature seeds are formed in the fruit. What does this indicate about the pollination process and success?
A) 100% success: 100 pollen grains grew to 50 ovules, two to each, and double fertilization occurred.
B) 100% success: Only 50% of the pollen grains germinated, but each produced 2 sperms to complete double fertilization in 50 seeds.
C) 50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 50 polar nuclei.
D) 50% success: 50 sperm fertilized 50 eggs, and 50 sperm fused with 100 polar nuclei.
correct answer and explanation why please.
Chapter 38 Solutions
Biology - Study Guide
Ch. 38 - Identify the flower parts in the following...Ch. 38 - a. Describe the male gametophyte. b. Describe the...Ch. 38 - Label the parts in the following diagrams of a...Ch. 38 - Prob. 4IQCh. 38 - a. List some ways in which fruits aid in seed...Ch. 38 - a. What is an advantage of apomixis? b. What is...Ch. 38 - How are vegetative reproduction and...Ch. 38 - Biofuels are considered carbon neutral, even...Ch. 38 - Draw a diagram of the major events in the life...Ch. 38 - List the advantages and disadvantages of sexual...
Ch. 38 - List some of the potential benefits and dangers of...Ch. 38 - ________ structure from which fruit typically...Ch. 38 - ________ generation that produces spores by...Ch. 38 - Prob. 3TYKFCh. 38 - Prob. 4TYKFCh. 38 - Prob. 5TYKFCh. 38 - Prob. 6TYKFCh. 38 - Prob. 7TYKFCh. 38 - Prob. 8TYKFCh. 38 - Prob. 9TYKFCh. 38 - Prob. 10TYKFCh. 38 - A flower on a dioecious plant is a. complete. b....Ch. 38 - Prob. 2TYKCh. 38 - Double fertilization involves fusion of sperm...Ch. 38 - The terminal cell of an early plant embryo a....Ch. 38 - Prob. 5TYKCh. 38 - Prob. 6TYKCh. 38 - Prob. 7TYKCh. 38 - Which of the following structures protects a bean...Ch. 38 - Prob. 9TYKCh. 38 - Prob. 10TYKCh. 38 - Prob. 11TYKCh. 38 - Which of the following statements is false? a....Ch. 38 - Prob. 13TYKCh. 38 - Prob. 14TYKCh. 38 - Prob. 15TYKCh. 38 - Prob. 16TYKCh. 38 - Which of the following techniques is being...
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- Which of the following is an advantage of asexual reproduction? a. Cuttings taken from an adult plant show increased resistance to diseases. b. Grafted plants can more successfully endure drought. c. When cuttings or buds are taken from an adult plant or plant parts, the resulting plant will grow into an adult faster than a seedling. d. Asexual reproduction takes advantage of a more diverse gene pool.arrow_forwardHow would plant development change if the functions of the genes SHOOTMERISTEMLESS (STM) and MONOPTEROUS (MP) were reversed? a. The embryo–suspensor axis would be reversed. b. The embryo–suspensor axis would be duplicated. c. The root–shoot axis would be reversed. d. The root–shoot axis would be duplicated.arrow_forwardHow would a loss-of-function mutation in the α-amylase gene affect seed germination? a. The seed could not imbibe water. b. The embryo would starve. c. The seed coat would not rupture. d. The seed would germinate prematurely.arrow_forward
- If the VIN3 gene had a loss-of-function mutation, how do youthink that would affect the phenotypes of summer-annual andwinter-annual Arabidopsis plants?a. Neither type would flower.b. Both types would flower at the proper time.c. The summer type would flower, but the winter type wouldnot.d. The winter type would flower, but the summer type wouldnot.arrow_forwardDouble fertilization is a) fertilization of an egg by two sperm. b) fertilization of two eggs by the same sperm. C) fertilization of two eggs in the same flower. d) fertilization of an egg by one sperm and an endosperm-forming cell by another sperm. e) fertilization of an egg and an endosperm-forming cell by the same sperm.arrow_forwardThe transfer of pollen grains from the male to the female reproductive structure is known as (a) pollination (b) fertilization (c) embryo sac development (d) seed development (e) fruit developmentarrow_forward
- Mention the site of zygote formation in the ovule of a flowering plant. What happens to sepals, petals and stamens after fertilisation? State the fate of zygote, ovule and ovary in these plants.arrow_forwardA scientist pollinates a true-breeding pea plant with violet, terminal flowers with pollen from a true-breeding pea plant with white, axial flowers. Which of the following observations would most accurately describe the F2 generation? a. 75% violet flowers; 75% terminal flowers b. 75% white flowers in a terminal position c. 75% violet flowers; 75% axial flowers d. 75% violet flowers in an axial positionarrow_forwardBased on this evidence, is it likely that burdock would reproduce as much if it didn’t have specially structured seeds? (a) it is most likely that it would still reproduce, but the offspring would probably be located much closer together (b) there is not enough information to speculate about how well burdock plants reproduce (c) no, there wouldn’t be as much burdock without its special structures (d) Yes, burdock would spread just as well regardless of the design of its seed podsarrow_forward
- The process of _______________ in flowering plants involves one sperm cell fusing with an egg cell and one sperm cell fusing with two polar nuclei. (a) coevolution (b) germination (c) double fertilization (d) apomixis (e) pollinationarrow_forwardUsing the illustration and the assumption that half of a plant's sperm and eggs are p and half are P, one can predict that the chance of sperm p meeting egg P at fertilization is ____. 25% 75% 1/2 x 1/4 50% 100%arrow_forwardFlower development occurs in __________ according to _________. a. 3 whorls, maternal-effect genes b. 3 whorls, the ABC model c. 4 whorls, maternal-effect genes d. 4 whorls, the ABC modelarrow_forward
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Plant Reproduction in Angiosperms; Author: Amoeba Sisters;https://www.youtube.com/watch?v=HLYPm2idSTE;License: Standard YouTube License, CC-BY