Biological Science, Loose-leaf Edition (7th Edition)
7th Edition
ISBN: 9780135272800
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 29, Problem 4TYK
Summary Introduction
Introduction:
The hyphae are the filaments that make up a mycelium. Each filament (hypha) is divided into cells by a wall-like structure called septa. Septa have pores to allow the passage of a large variety of materials from one compartment to the other.
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Although ascospores are produced by mitotic division, none of the spores develop into fungi that are identical to either parental hyphae. What is the BEST explanation for this observation?
A.
The spores inherit half their genes from each parent.
B.
The spores inherit haploid nuclei from their parents.
C.
The spores inherit mutations as a result of meiosis.
D.
The spores inherit mutations as a result of mitosis.
Dikaryotic cells
A.
contain two nuclei per cell
B.
produce two spores per hypha
C.
contain diploid nuclei
D.
have two hyphae per fruiting body
E.
contain pairs of homologous chromosomes
What is the ploidy of the most conspicuous form of most fungi? a. diploid b. haploid c. alternation of generations d. asexual
Chapter 29 Solutions
Biological Science, Loose-leaf Edition (7th Edition)
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- Although ascospores are produced by mitotic division, none of the spores develop into fungi that are identical to either parental hyphae. What is the BEST explanation for this observation? A. The spores inherit half their genes from each parent. B. The spores inherit haploid nuclei from their parents. C. The spores inherit mutations as a result of meiosis. D. The spores inherit mutations as a result of mitosis. Photo Attatchedarrow_forwardBased 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_forwardBased 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. 8 Photo attatchedarrow_forward
- Basidiomycota is a division of the Kingdom Fungi. They include groups such as mushrooms, and reproduce sexually through the formation of cells called basidia. Which of the following rows identifies Process 1 and Process 3 in the life cycle shown in the diagram? Select one: a. Process 1 Process 3 Meiosis Mitosis b. Process 1 Process 3 Mitosis Mitosis c. Process 1 Process 3 Meiosis Meiosis d. Process 1 Process 3 Mitosis Meiosisarrow_forwardA fungal hypha that contains two genetically different nuclei would be classified asa. monokaryotic.b. bikaryotic.c. homokaryotic.d. heterokaryoticarrow_forwardWhich of the following can be associated with life cycles in protists? Select all that apply. A. alternation of generations B. multicellular haploids and unicellular diploids C. heterotrophic diploids and phototrophic haploids D. meiosis and fertilization E. binary fission F. zygotes producing gametesarrow_forward
- Fungi would best be described as having which of the following life cycles? A. diploid-dominant B. alternation of generations C. gametophyte dominant D. haploid-dominantarrow_forwardIn Chlamydomonas, the adult vegetative cella. is haploid.b. survives harsh environments.c. produces zygospores.d. is dormant.e. is ciliated.arrow_forwardWhat is evidence for conflict in Dictyostelium? A. only clonal groups have unequal spore/stalk ratios B. chimeras form between genotypes C. clonal groups migrate farther as a slug compared to chimeras D. clonal groups have shorter stalk lengtharrow_forward
- Slime molds are ususual in their lifestyles and apperance. You might have seen one and not even realized it. Dictyostelium discoideum is a slime mold used in research. In this species, individual amoeboid cells aggregate into multicellular mobile slugs, and each slug forms a fruiting body that produces haploid spores. What are these ameboid cells known as? A. sporangia B. plasmodium slime molds C. pseudohyphae D. cellular slime moldsarrow_forwardHow can ascomycetes be distinguished from basidiomycetes?a. Ascomycete hyphae have simple pores in their septa and lack clampconnections, whereas basidiomycete hyphae display complex septalpores and clamp connections.b. Ascomycetes produce sexual spores in sacs, whereasbasidiomycetes produce sexual spores on the surfaces of clubshaped structures.c. Ascomycetes are commonly found in lichens, whereasbasidiomycetes are less commonly partners in lichen associations.d. Ascomycetes are not commonly mycorrhizal partners, butbasidiomycetes are commonly present in mycorrhizal associations.e. All of the above are correct.arrow_forwardWhich of the following best describes Basidiomycota? A. The vast majority of spores formed are asexual. B. Spores line up in a sac in the order they were formed by meiosis. C. Monokaryotic hyphae fuse to grow into a heterokaryotic mycelium. D. No sexual stage has been found.arrow_forward
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