Genetic Analysis: An Integrated Approach (2nd Edition)
2nd Edition
ISBN: 9780321948908
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter 20, Problem 28P
Basidiomycota is a monophyletic group of
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Chapter 20 Solutions
Genetic Analysis: An Integrated Approach (2nd Edition)
Ch. 20 - 18.1 Explain why many developmental genes encode...Ch. 20 - Bird beaks develop from an embryonic group of...Ch. 20 - 18.3 How is positional information provided along...Ch. 20 - Early development in Drosophila is atypical in...Ch. 20 - 18.5 Consider the evenskipped regulatory sequences...Ch. 20 - What is the difference between a parasegment and...Ch. 20 - Why do loss-of-function mutations in Hox genes...Ch. 20 - 18.8 Compare and contrast the specification of...Ch. 20 - Prob. 9PCh. 20 - Ablation of the anchor cell in wild type C....
Ch. 20 - 18.11 In gain-of-function and. elegans mutants,...Ch. 20 - Prob. 12PCh. 20 - Prob. 13PCh. 20 - 18.14 Given that maternal Bicoid activates the...Ch. 20 - What phenotypes do you expect in flies homozygous...Ch. 20 - The pair rule gene fushitarazu is expressed in...Ch. 20 - 18.17 In contrast to Drosophila, some insects...Ch. 20 - Prob. 18PCh. 20 - 18.19 You are traveling in the Netherlands and...Ch. 20 - 19.20 A powerful approach to identifying genes of...Ch. 20 - Prob. 21PCh. 20 - The Hoxd 913 genes are thought to specify digit...Ch. 20 - Three-spined stickleback fish live in lakes formed...Ch. 20 - In C. elegans there are two sexes: hermaphrodite...Ch. 20 - The flowering jungle plant Lacandoniaschismatica,...Ch. 20 - 18.24 Homeotic genes are thought to regulate each...Ch. 20 - Prob. 27PCh. 20 - Basidiomycota is a monophyletic group of fungi...Ch. 20 - In Drosophila, recessive mutations in the...
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- Some fungi can be viewed as coenocytic organisms that exhibit little differentiation. When differentiation does occur, such as in the formation of reproductive structures, it is preceded by septum formation. Why does this occur?arrow_forwardFungi are a highly diverse group of heterotrophic eukaryotes. Discuss and explain the terrestrialization of fungi.arrow_forwardWhen the Ascomycetes fungus reproduces sexually, mating type A fungi cross fertilize mating type a fungi. The resulting zygotes undergo meiotic and then mitotic division to produce asci with eight ascospores. The ascospores in the asci are ordered and reflect the position of the parental nuclei in the zygote. Use the passage to answer the question. How is the life cycle of Ascomycetes different from that of humans? A. Haploid cells undergo meiosis. B. Haploid cells undergo mitosis. C. Diploid cells undergo meiosis. D. Diploid cells undergo mitosis.arrow_forward
- Complete the life cycle to explain the generalized life cycle of fungi. Use the terms below. Karyogamy Meiosis Mycelium Plasmogamy Sporesarrow_forwardWhat 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?arrow_forwardComplete the following table distinguishing the true fungi phyla based on reproduction. SEXUAL reproduction through conjugation of 2 different mating strains ASEXUAL reproduction by conidial ASEXUAL reproduction by spores (produced in sporangia) ASEXUAL reproduction by conidia (produced on tips of conidiophores) or budding Do not perform SEXUAL reproduction. SEXUAL reproduction by fusion of 2 mating types of monokaryotic hyphae. Resulting dikaryotic mycelium often develops basidiomata SEXUAL reproduction through the union of male and female structures, followed by formation of asci ASEXUAL reproduction by zoospores (produced in zoosporangia) ASEXUAL reproduction is rare, but can occur by conidia. SEXUAL reproduction through fusion of two motile or non-motile gameres PHYLUM Chytridiomycota The Chytrids Zygomycota: The Coenocytic True Fungi Ascomycota: The Sac Fungi Basidiomycota: The Club Fungi Deuteromycota: The Imperfect Fungi ASEXUAL SEXUAL REPRODUCTION REPRODUCTIONarrow_forward
- Relate plasmogamy and karyogamy to the process of fertilization and describe whey we need to separate these two things in the life cycle of the fungi. Differentiate between the monokaryotic and dikaryotic conditions. Compare and contrast an animal life cycle with that of a typical mushroom including the haplophase, dikaryophase, and diplophase, products of meiosis, plasmogamy, and karyogamy.arrow_forwardAfter plasmogamy has occurred, many molds (Mucoromycetes) exist in a heterokaryotic stage for up to centuries at a time. What occurs at the immediate end of this stage? The nuclei fuse in a process called karyogamy. The hyphae fuse in a process called karyogamy. Diploid spores are produced in various spore-producing structures. A haploid zygote is formed that becomes multicellular through repeated rounds of mitosis.arrow_forwardMany fungi produce chemicals that inhibit bacterial growth. Why might the genes encoding these chemicals be adaptive to fungi?arrow_forward
- You have been asked to consult for a biotech company that is seeking to understand why some fungi can live in very extreme environments, such as the high temperatures inside naturally occurring hot springs. The company has isolated two different fungal species, F. cattoriae and W. gravinius, both of which can grow at temperatures exceeding 95°C. The company has determined the following things about these fungal species (see attached image) By sequencing and examining their genomes, the biotech company hopes to understand why these species can live in extreme environments. However, the company only has the resources to sequence one genome, and would like your input as to which species should be sequenced and whether you believe a shotgun strategy will work in this case.arrow_forwardThe Fungi are a kingdom driven by their relationships with other taxa. I) What two major roles do fungi play? ii) Describe one example of a specific fungal species that effects humans. Iii) Describe one example of a specific fungal species that effects plants.arrow_forwardZygomycete 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 gametangiaarrow_forward
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