Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
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
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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_forwardHow 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_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_forward
- 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. 8 Photo attatchedarrow_forwardIn a majority of flowering plants, outof the four megaspores, what is the ratio of functional and degeneratemegaspores?A. 2:2 B. 1:3C. 3:1 D. 4:0arrow_forwardBasidiomycota 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_forward
- Which statement about slime molds is correct? A. Cellular slime molds have haploid zygotes. B. Cytoplasmic streaming helps distribute nutrients and oxygen in cellular slime molds. C. In plasmodial slime molds, the haploid condition is the dominant part of the life cycle. D. Cellular slime molds have fruiting bodies that function in sexual reproduction. E. Cellular slime molds form masses when food is scarce, but their cells remain separated .arrow_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
- The life cycles of perfect fungi are most similar to which other organism? a. Hydra that undergo asexual budding b. Diploid-dominant pea plants c. Haploid-dominant green algae d. Bacteria undergoing binary fissionarrow_forwardHow 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. (photo attatched)arrow_forwardFungi 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_forward
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