Give the PLOIDY of the following (ex: haploid, diploid, etc…) 1. oospore 2. prothallus 3. androcyte 4. archegonium 5. endosperm 6. microsporocyte 7. antherozoids 8. oosphere 9. megaspore
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Give the PLOIDY of the following (ex: haploid, diploid, etc…)
1. oospore
2. prothallus
3. androcyte
4. archegonium
5. endosperm
6. microsporocyte
7. antherozoids
8. oosphere
9. megaspore
10. protenema
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- This is a longitudinal section of a Marchantia sp. gametophyte body. Label the following structures: A.) thallus, B.) gemma cup, C.) gemmae.Zygomycete bread molds such as Rhizopus stolonifer (black bread mold) produce sporangia in both sexual and asexual reproductive cycles. Which of the following do the sexual sporangia of Rhizopus stolonifer originate from (i.e. what does the sporangia grow out of)? Select one: O a. from the aseptate hyphae O b. from the zygosporangium O c. from the substrate O d. from the gametangiaLabel the diagram which features an illustration of a portion of the sporophyte of Selaginella with strobili, and a photomicrograph of the longitudinal section of a mature strobilus. Indicate whether each of the structure you identified is haploid (n) or diploid (2n)
- http://botit.botany.wisc.edu/botany_130/diversity/plants/mosses.html Make a complete moss life cycle with the following phases and structures. Note: download the images of Mnium from this link and arrange them in the exact sequence to make the lifecycle. Lifecycle structures with cell division: Meiosis, fertilization within archegonium, capsule (sporangium), spores (n), protonema (n) (Image), male gametophyte (n) (Image), female gametophyte (n) (Image), antheridia (Image), archegonia (Image), sperm, egg, water, zygote (2n), embryo, young growing sporophyte (2n), mature sporophyte (2n) (Image), rhizoids. You can insert the non-image part, using the textbox and fill out the suitable s text. For symbol, click on the shape option and inter in your lifecycle diagram at the required placeThe basidium of the club fungi could be correctly described as; A reproductive structure that produces diploid spores A sexual reproductive structure that produces 4 haploid spores An asexual reproductive structure that produces thousands of spores A sexually reproductive structure that produces 8 haploid spores4. a) EXPLAIN the terms Haplobiontic and Diplobiontic Life Cycle and give ONE example for each b) Anthophytes show "alternation of generation". Identify the structures that represent the TWO stages in its life cycle. c) The diagrams in Figure 2 show the steps in the development of an embryo sac and pollen grain. In ovary megasporangial cell In anther microsporangial cells VI microsporocyte / pollen mother cells (2n) microsporocyte (n) megasporocyte / embryo sac mother cell (2n) 4 megaspores (n) 1 megaspore (..) tube nucleus and VII immature pollen grain antipodal nuclei - polar nuclei synergids egg nucleus .nucleus .nudeus . nudeus (.. VII embryo sac germinating pollen grain FIGURE 2 i) STATE the process that occurs at stages I to IV in the diagrams in Figure 2. ii) What is the chromosome content of the megaspore at III. ii) What are the names of nuclei formed during germination of the pollen grain at VIIIT iv) Identify TWO ways that the sporophyte of a fern differs from that of an…
- What is the shape of the ascocarp in Figure 4.9. What is the shape of the ascus in Figure 4.10. Are ascopores haploid or diploid? Deduce the function of paraphyses. Are the individuals germinating from ascospores haploid or diploid?Which of the following is not the main characteristics of Liverworts. Choose 3 The columella is absent in the capsule Pseudolaters are present in the capsule gametophyte plant is either thalloid or foliose dehiscence of the capsule takes place by separation of the lid each cell has one chloroplast with a pyrenoidThe sporophyte generation in higher plants include which of the following: 1) seta 2) plant embryo 3 ) anther 4) embryo sac 5) seed cone 6) fruit 7) pollen grain 8.) needle-like leaves 9) protonemata 2. Which characterize Gnetum gnemon? 1 ) netlike venation 2) tracheary elements (vessels and tracheids 3) naked ovules 4) linear, entire leaves 5) dioecious flowers 6) parallel venation 7) vessels 8. broad, entire leaves 9) tracheids 10) ovary walls 11) monoecious flowers
- http://botit.botany.wisc.edu/Resources/Botany/Fungi/Ascomycota/Peziza/ How do find out which one is the ascospore in Peziza apothecium?Figure 24.14 Which of the following statements is true? A dikaryotic ascus that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to form eight ascospores. A diploid ascus that forms in the ascocarp undergoes karyogamy, meiosiis, and mitosis to form eight ascospores. A haploid zygote that forms in the ascocarp undergoes karyogamy, meiosiis, and mitosis to form eight ascospores. A dikaryotic ascus that forms in the ascocarp undergoes plasmogamy, meiosis, and mitosis to form eight ascospores.Figure 24.17 Which of the following statements is true? A basidium is the fruiting body of a mushroom-producing fungus, and it forms four basidiocarps. The result of the plasmogamy step is four basidiospores. Karyogamy results directly in the formation of mycelia. A basidiocarp is the fruiting body of a mushroom-producing fungus.