Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 17, Problem 6TYU
Summary Introduction
Introduction: A model organism is an organism which is used to study the behavior of other organisms in the laboratory. The widely used model organism is Drosophila, Arabidopsis, and sometimes mouse. Arabidopsis is the model organism used for the study in plant development.
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(a) What is the mutant that helps us to understand the adaxial identity of leaf development and the laminar outgrowth?
(b) What is the mutant phenotype?
(c) Which kind of protein does this gene encode?
1. Of the following characteristics of plants, which are inherited (shared with green algae) and wh.
are new (evolved within the plant lineage only)?
a) Multicellular sporangia
b) Presence of chloroplasts
c) Sessile (doesn't move)
d) Embryos supported by parents
e) Apical meristems
f) Cellulose cell walls
Based 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 pods
Chapter 17 Solutions
Biology (MindTap Course List)
Ch. 17.1 - Prob. 1LOCh. 17.1 - Describe the classic experiments of Steward,...Ch. 17.1 - Define stem cells, distinguish between embryonic...Ch. 17.1 - What lines of evidence support the principle of...Ch. 17.1 - Prob. 2CCh. 17.1 - What does the ability to produce iPSCs tell...Ch. 17.2 - Prob. 4LOCh. 17.2 - Prob. 5LOCh. 17.2 - Prob. 6LOCh. 17.2 - Prob. 7LO
Ch. 17.2 - Prob. 1CCh. 17.2 - Prob. 2CCh. 17.2 - Prob. 3CCh. 17.2 - Prob. 4CCh. 17.3 - Prob. 8LOCh. 17.3 - Prob. 1CCh. 17.3 - Prob. 2CCh. 17 - Prob. 1TYUCh. 17 - Prob. 2TYUCh. 17 - The anteriorposterior axis of a Drosophila embryo...Ch. 17 - Prob. 4TYUCh. 17 - Homeobox genes (a) are found in fruit flies but no...Ch. 17 - Prob. 6TYUCh. 17 - Prob. 7TYUCh. 17 - Which of the following statements about cancer is...Ch. 17 - Proto-oncogenes code for (a) morphogens (b)...Ch. 17 - Prob. 10TYUCh. 17 - Prob. 11TYUCh. 17 - Prob. 12TYUCh. 17 - CONNECT Why is an understanding of gene regulation...Ch. 17 - What is the reason that scientists study...Ch. 17 - Prob. 15TYUCh. 17 - Prob. 16TYUCh. 17 - EVOLUTION LINK What is the common ground between...Ch. 17 - INTERPRET DATA Flower parts are arranged in four...
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- 1 a) Describe the process of double-fertilization in this fireweed. b) What is the significance of this process in plant evolution?arrow_forwardWhich of the following statements is accurate? a) All plants have identical sporangia, all producing the same type of spores b) Plants have an embryo that is protected inside (and nourished by) the gametophyte c) Gametangia produce gametes by meiosis whereas sporangia produce spores by mitosis d) Gametangia always produce haploid gametes whereas sporangia produce diploid spores e) Gametangia are multicellular structures whereas sporangia are unicellular structuresarrow_forwardSeed plants lack which of the following structure(s)? (a) ovules surrounded by integuments (b) microspores and megaspores (c) vascular tissues (d) a large, nutritionally independent sporophyte (e) a large, nutritionally independentgametophytearrow_forward
- 1. Skunk cabbage has evolved stinky flowers because (a) the smell prevents other plants from growing nearby all year long. (b) all yellow flowers smell bad. (c) the odor attracts pollinators. (d) the odor repels pollinators. 2. Which of the following is not a characteristic of most plants? (a) carries out photosynthesis (b) has cell walls made of cellulose (c) has yellow flowers (d) has specialized reproductive organs 3. Much of the oxygen in the earth's atmosphere (a) is produced as a waste product of cellular respiration in plants. (b) is released as a byproduct of photosynthesis. (c) is produced as a waste product of cellular respiration in animals. (d) is produced by tree frogs. 4. The mature sporophyte of a fern (a) produces haploid spores by meiosis. (b) produces diploid spores by meiosis. (c) produces diploid spores by mitosis. (d) produces haploid spores by mitosis. 5. Fusion of male and female gametes in plants produces (a) a eudicot stamen. (b) a style. (c) a haploid spore.…arrow_forwardFertilization in plants occurs in the –a) Embryo sacb) Stylec) Pollen tubed) Stigmaarrow_forward1. a)List two characteristics of plants that make them unique. b)Why do plants need to exchange gases with the environment? c)Distinguish between a fibrous root and a taproot. d)What is the main driving force for the movement of water in plants? e)State four benefits of asexual reproduction in plants.arrow_forward
- In plant life cycles, (a) the first products of meiosis are gametes (b) spores are part of the diploid sporophyte generation (c) the embryo gives rise to a zygote (d) the first stage in the diploid sporophyte generation is the zygote (e) the first stage in the haploid gametophyte generation is the prothallusarrow_forwardKey features of seed plants facilitating life on land include threeof the following four traits. Select the exception.(A) homospory(B) pollen(C) reduced gametophytes(D) seedsarrow_forwardA plant biologist discovers a new species of plant in the ashes of a recent forest fire along the sides of a steep mountain range. It is fall, and temperatures are dropping below freezing. The biologist cannot stay in the field to observe the plant. What can he infer about the plants reproductive strategy based on his recent observations? A) the plant will produce flowers because at this altitude there is sufficient sunlight B) the plant will produce comes because cones will mature into adult plants more rapidly C) the plant will produce cones because cones allow for seed dispersal through all seasons D) the plant will produce flowers because flowers can protect the seed from extreme conditionsarrow_forward
- i) list TWO adaptations that show that the plant conserves water.ii) Photosynthetic cells produce starch and may be stored. Describe how one may test for the presence of starch on a piece of potato tissue. iii) Give TWO characteristics of monocotyledonous plants. d. The transition of plants from an aquatic environment to a terrestrial one has broughtabout many evolutionary adaptations for plants to survive on land. Give ONE adaptationfor each of the following divisions:i) Mosses: ii) Gymnosperms.arrow_forwardWhich is common to the life cycles of both flowering and non-flowering plants? a) produce fruit b) stay dormant c) pollination d) producing conesarrow_forwarda) What role does 'alternation of generation' play in encouraging survival of simple plants like the Bryophytes and Hepatophytes. b) i) Anthrophytes also show alternation of generation. Identify the structures that represent these two stages in its life cycle. ii) Explain why the alternation of generation in Anthrophytes must be different from that of the Bryophytes.(-arrow_forward
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