Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 12, Problem 3TMW
Summary Introduction
To tell:
Fungal dikaryon with its two haploid (n) nuclei is not considered as the diploid.
Introduction:
Zygomycetes are the multinucleate molds which are obligate
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Label A-H from image
as the following:
I: Dikaryotic
II: Basidiospores
III: Plasmogamy
IV: Meiosis
V: Diploid
VI: Haploid
VII: Karyogamy
VIII: Zygote
In embryophytes, especially spermatophya, what is the difference between a "sporocyte" (e.g., megasporocyte) and the actual spore (e.g., megaspore)?
a) Meiosis: Megasporocyte is still diploid, megaspore haploid
b) Mitosis, number of nuclei: Megaspore has eight cell nuclei, megasporocyte only one
c) Cytokinesis: Megasporocyte has only one cell, Megaspore can have several (as endosporic gametophyte).
d) None: the two terms are synonymous.
e) Meiosis: Megaspore is still diploid, megasporocyte haploid
When 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.
Chapter 12 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 12 - Why is it incorrect to call mitosis cell division?Ch. 12 - Why did early taxonomists categorize such...Ch. 12 - Prob. 1EDCSCh. 12 - Prob. 3TMWCh. 12 - Why arent there large numbers of pathogenic algae?Ch. 12 - Prob. 5TMWCh. 12 - Prob. 6TMWCh. 12 - Haploid nuclei _________. a. contain one set of...Ch. 12 - Prob. 2MCCh. 12 - Which of the following statements accurately...
Ch. 12 - Prob. 4MCCh. 12 - Prob. 5MCCh. 12 - Prob. 6MCCh. 12 - A phycologist studies which of the following? a....Ch. 12 - The stemlike portion of a seaweed is called its...Ch. 12 - Carrageenan is found in the cell walls of which...Ch. 12 - Prob. 10MCCh. 12 - Which of the following features characterizes...Ch. 12 - Amoebas include microbes with ________. a....Ch. 12 - The motile feeding stage of a protozoan is called...Ch. 12 - Prob. 14MCCh. 12 - Prob. 15MCCh. 12 - 1. ___ Mitosis 2. ___ Meiosis 3. __ Homologous...Ch. 12 - Prob. 2MCh. 12 - Match each of the following descriptions with the...Ch. 12 - Prob. 1VICh. 12 - Prob. 2VICh. 12 - Prob. 1SACh. 12 - Prob. 2SACh. 12 - Prob. 3SACh. 12 - What are the taxonomic challenges in classifying...Ch. 12 - List several economic benefits of algae.Ch. 12 - Why are relatively large animals such as parasitic...Ch. 12 - Prob. 7SACh. 12 - What is the role of rRNA sequencing in the...Ch. 12 - Prob. 9SACh. 12 - The study of protozoa is called ________.Ch. 12 - Prob. 2FIBCh. 12 - Prob. 3FIBCh. 12 - Prob. 4FIBCh. 12 - Prob. 5FIBCh. 12 - How are cysts of protozoa similar to bacterial...Ch. 12 - Prob. 2CTCh. 12 - Why doesnt penicillin act against any of the...Ch. 12 - Prob. 4CTCh. 12 - Prob. 5CTCh. 12 - Prob. 6CTCh. 12 - Which metabolic pathways are present in protozoa...Ch. 12 - Prob. 8CTCh. 12 - Prob. 9CTCh. 12 - Prob. 10CTCh. 12 - Prob. 11CTCh. 12 - Prob. 12CTCh. 12 - Prob. 13CTCh. 12 - Prob. 1CM
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- Yeast are unicellular fungi that reproduce by budding (Fig. 8.4.). Identify individual yeast cells and locate a budding cellarrow_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. Based on the diagram, how many unique ascospores are produced in each ascus resulting from the cross fertilization of two Ascomycetes fungi? A. 1 B. 2 C. 4 D. 8arrow_forwardSome fungi exhibit dimorphism, i.e. they can exist in both yeast and mold form. Why is this so? What advantage does this provide for these organisms?arrow_forward
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- Which statement about life cycles with a dikaryon stage is false? A zygosporangium results from the fusion of two coenocytic hyphae. In effect, the dikaryon is neither diploid nor haploid. Dikaryotic hyphae often have characteristics that are different from those of their n or 2n products. The only true diploid structure is the zygote. There are no gamete cells, only gamete nuclei.arrow_forwardWhy is number 30 wrongarrow_forwardWhich of the following pairs come under the groupchrysophytes?(a) Diatoms and Euglena(b) Euglena and Trypanosoma(c) Diatoms and Desmids(d) Gonyaulax and Desmids Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.arrow_forward
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