BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 29, Problem 2S
Would you expect the sporophyte generation of a moss or a fern to have more mitotic divisions? Why?
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Would you expect the sporophyte generation of a moss or a fern to have more mitotic divisions? Why?
What would happen if the megaspore itself functioned as an egg and did not go on to produce other nuclei in a female gametophyte?
If ferns produce spores, are they a sporophyte or agametophyte? Are they haploid or diploi
Describe two differences between a fern sporophyte and a moss sporophyte.
Are fern spores haploid or diploid? Are the spores produced by meiosis or mitosis? Where are the spores produced?
Chapter 29 Solutions
BIOLOGY
Ch. 29.1 - Explain the relationship between the different...Ch. 29.1 - Prob. 2LOCh. 29.1 - Prob. 3LOCh. 29.1 - Prob. 4LOCh. 29.2 - Describe adaptations of bryophytes for life on...Ch. 29.3 - Prob. 1LOCh. 29.3 - Evalute the signification of roots, stems, and...Ch. 29.4 - Prob. 1LOCh. 29.4 - Prob. 2LOCh. 29.5 - Prob. 1LO
Ch. 29.5 - Prob. 2LOCh. 29 - Compare the amount of time that passed between the...Ch. 29 - Explain why tracheophytes may have had a selective...Ch. 29 - Which of the following plant structures is NOT...Ch. 29 - Which of the following genera most likely directly...Ch. 29 - Which of the following would NOT be found in a...Ch. 29 - Prob. 4UCh. 29 - Evolutionary innovations that increase desiccation...Ch. 29 - Which of the following statements about the...Ch. 29 - Compare what happens to a spore mother cell as it...Ch. 29 - How could a plant without roots obtain sufficient...Ch. 29 - A major innovation of land plants is embryo...Ch. 29 - In comparing the Selaginella and Physcomitrella...Ch. 29 - Prob. 5ACh. 29 - Identify which of the following statements is...Ch. 29 - You have access to the sequenced genomes for moss...Ch. 29 - Would you expect the sporophyte generation of a...Ch. 29 - Imagine hypothetical moss and fern trees, each 10...
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- Do mosses have an alteration of isomorphIC Or heteromorphic generations? That is, can youeasily tell a moss gametophyte from a moss sporophyte? When we look at leafy green mossplants, what are we seeing - gametophyte or the sporophyte? in a fiowering plant species,would the equivalent stage be the plant the pollen grains and megagametophytesarrow_forwardWhat event begins the gametophyte phase of the life cycle? Where does this event occur in liverworts and mosses?arrow_forwardIn most female gametophytes with eight nuclei, only the egg and the central cell nuclei do not degenerate. What would happen if the megaspore itself functioned as an egg and did not go on to produce other nuclei in a female gametophyte?arrow_forward
- Are fern spores haploid or diploid? Are the spores proudced by meiosis or mitosis? Where are the spores produced?arrow_forwardDo mosses have an alternation of isomorphic or heteromorphic generations? That is, can you easily tell a moss gametophyte from a moss sporophyte? When we look at leafy green moss plants, what are we seeing—the gametophyte or the sporophyte? In a flowering plant species, would the equivalent stage be the plant or the pollen grains and megagametophytes?arrow_forwardWhich of the following IS found in basal land plants (Embryophyta), but NOT found in Chara?a. Multicellular gametangia with sterile jacket.b. Diploid mitosis.c. Photoautotrophous gametophyted. Haploid mitosis.e. Sperm cells with two flagellaarrow_forward
- Is the protonema part of the gametophyte or sporophyte generation?arrow_forwardHow does a haplontic plant population maintain genetic diversity? a. Zygotes are produced by random fusion. b. Gametes are created through meiosis. c. Diploid spores undergo independent assortment during mitosis. d. The zygote undergoes meiosis to generate a haploid sporophyte.arrow_forwardWhich of the following pairs of plant structure has the haploid number ofchromosomes? A. Megaspore mother cell and antipodal cells B. Egg cell and antipodal cells C. Egg cell and endosperms D. Microspore mother cell and antipodal cellsarrow_forward
- Which two structures evolved though a series of changes in the reproductive biology among some heterosporous plants during the late Devonian period allowed spermatophytes (seed plants) to reduce or eliminate their dependence on water for gamete fertilization and development of the embryo and allowed them to colonize a much wider range of habitats?arrow_forwardPlants undergo an alternation of generations. This means that the diploid _____ produces spores, which develop into the haploid _____.sporophyte; flowerssporophyte; seedssporophyte; gametophytegametophyte; sporophyteflowers; gametophytearrow_forwardWhat is the function of the sporophyte (that is, what does it do, or what reproductive structures does it produce)? What type of nuclear division must take place for the sporogenous tissue to become spores? Is the protonema part of the gametophyte or sporophyte generation?arrow_forward
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