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 27, Problem 3TYU
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 prothallus
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Identify each of the following structures as haploid or diploid.(A) sporophyte(B) spore(C) gametophyte(D) zygote
. In plants, which of the following are produced by meiosis?(A) haploid gametes(B) diploid gametes(C) haploid spores(D) diploid spores
The cells of endosperm have 24 chromosomes. What will be the number of chromosomes in the gametes ?
(a) 8
(b) 16
(c) 23
(d) 32
Chapter 27 Solutions
Biology (MindTap Course List)
Ch. 27.1 - Discuss some environmental challenges of living on...Ch. 27.1 - Name the green algal group from which plants are...Ch. 27.1 - Prob. 1CCh. 27.1 - Prob. 2CCh. 27.1 - Prob. 3CCh. 27.1 - Prob. 4CCh. 27.2 - Summarize the features that distinguish bryophytes...Ch. 27.2 - Name and briefly describe the three phyla of...Ch. 27.2 - Describe the life cycle of mosses and compare...Ch. 27.2 - Prob. 1C
Ch. 27.2 - How are mosses, liverworts, and hornworts similar?...Ch. 27.3 - Discuss the features that distinguish seedless...Ch. 27.3 - Name and briefly describe the two phyla of...Ch. 27.3 - Describe the life cycle of ferns and compare their...Ch. 27.3 - Compare the generalized life cycles of homosporous...Ch. 27.3 - Prob. 1CCh. 27.3 - Prob. 2CCh. 27.3 - Which of the following are parts of the sporophyte...Ch. 27.3 - Why are whisk ferns and horsetails now classified...Ch. 27.3 - How does heterospory modify the plant life cycle?Ch. 27 - Plants probably descended from a group of green...Ch. 27 - Which of the following is not a characteristic of...Ch. 27 - In plant life cycles, (a) the first products of...Ch. 27 - The bryophytes (a) include mosses, liverworts, and...Ch. 27 - The waxy layer that covers aerial parts of plants...Ch. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - Know and Comprehend 8. The green,...Ch. 27 - Prob. 9TYUCh. 27 - Know and Comprehend 10. These plants have...Ch. 27 - Know and Comprehend 11. These plants have hollow,...Ch. 27 - Know and Comprehend 12. Which of the following...Ch. 27 - Apply and Analyze 13. VISUALIZE Draw a simple...Ch. 27 - Evaluate and Synthesize 14. EVOLUTION LINK How may...Ch. 27 - Evaluate and Synthesize 15. INTERPRET DATA...Ch. 27 - Evaluate and Synthesize 16. EVOLUTION LINK Where...
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- no need to explain just need to know if its a,b,c or d 1.) The life cycles of some plants contains two alternating generations of adults. The diploid adult is called the sporophyte generation and the haploid adult is the gametophyte generation. The diploid plants of the sporophyte generations produce spores by the process of: a.) amitosis b.) meiosis c.) mitosis d.) binary fission 2.) A scientist was examining a human cell with 22 pairs of autosomes, an X chromosome and a Y chromosome. What conclusions can we drawn about the cell? a.) It is a somatic, diploid and male cell. b.) It is a somatic, diploid and female cell. c.) It is a gametic, haploid and male cell. d.) It is a gametic, diploid and male cell. 3.) What will be the number of chromosomes in Turner’s syndrome and Klinefelter's syndrome of an organism whose haploid number is 20? a.) 39 in Turner’s syndrome and 41 in Klinefelter’s syndrome b.) 41 in Turner’s syndrome and 39 in Klinefelter’s syndrome c.) 19 in Turner’s…arrow_forwardCompare the Venn diagram of sexual reproduction and asexual reproduction in plants. Where in the diagram would you add identical to parent A)a B)b C)c D)darrow_forwardCleistogamous flowers are invariably autogamous because” (a) These flowers do not open at all. (b) There is no chance of cross – pollen landing on the stigma. (c) These flowers have exposed anthers and stigma. (d) These flowers are wind pollinated.arrow_forward
- Which of these is a condition that makes flowers invariably autogamous ? (a) Dioecy (b) Self incompatibility (c) Cleistogamy (d) Xenogamyarrow_forward12. (a) Plant in FIGURE 12 can reproduce sexually or asexually. Sporophyte generation is dominant for this plant. A FIGURE 12 (i) Identify the name of the plant species in FIGURE 12 and its phylum. (ii) Name parts A and B. (iii) State the roles of part A and part B in reproduction.arrow_forwardSome dioecious species have the XY genotype for male andXX for female. After double fertilization, what would be thegenotypes of the embryos and endosperm nuclei?(A) embryo XY/endosperm XXX or embryo XX/endosperm XXY(B) embryo XX/endosperm XX or embryo XY/endosperm XY(C) embryo XX/endosperm XXX or embryo XY/endosperm XYY(D) embryo XX/endosperm XXX or embryo XY/endosperm XXYarrow_forward
- Which 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_forwardArrange the following flower and fruit development processes in order. (1st step to 5th step)The microspore mother cell produces haploid microspores. => stepThe flower produces pollen grains that will land on the stigma. => StepThe tube cell forms the pollen tube, anchoring on the synergid. => StepFirst sperm will fertilize the egg to form the zygote (becoming the embryo later on). => StepThe ovary wall enlarges forming the pericarp. => Steparrow_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
- Growth of pollen tube towards embryo sac is (a) chemotropic (b) thigmotaxis (c) geotropic (d) none of thesearrow_forward12) Why do you say that fertilization in seed plants is independent of water? A) Spermatid cells are not necessary for fertilization to occur in seed plants.B) Seed plants use pollen instead of spermatid cells for fertilization.C) Spermatid cells are carried by pollen grains.D) Which spermatid cells in seed plants are capable of resisting desiccation indefinitely.arrow_forwardMotile sperm cells are found as vestiges in these two gymnosperm groups: (a) monocots, eudicots (b) gnetophytes, conifers (c) gnetophytes, flowering plants (d) cycads, conifers (e) cycads, ginkgoarrow_forward
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