Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 23, Problem 13RQ
Alternation of generations describes which of the following?
- The haploid form can be multicellular; the diploid form is unicellular
- The haploid form is unicellular; the diploid form can be multicellular
- Both the haploid and diploid forms can be multicellular
- Neither the haploid nor the diploid forms can be multicellular.
Expert Solution & Answer
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Students have asked these similar questions
In the space below, diagram generalized haplontic, diplontic, and alternation of generations life cycles.
Make sure to indicate whether each stage in the life cycle is haploid or diploid, and unicellular or
multicellular. Also write the stage's name (e.g., zygote, gametophyte, spore, etc.) if it has one. You don't
need to draw the stages - e.g., for a zygote you can just write "zygote, unicellular, 2N". Also make sure
to indicate where exactly in the life cycle meiosis takes place. Please draw and label these as
possible
clearly
as
Haplontic
Diplontic
Alternation of generations
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.
Alternation of generation refers to
alternation between asexually reproducing and
sexually reproducing organisms
alternation of diploid and haploid generations
alternation of both asexually reproducing and
sexually reproducing organisms, as well as
diploid and haploid generations
alternation between seed formation stage and
zygotes
Chapter 23 Solutions
Biology 2e
Ch. 23 - Figure 23.5 What evidence is there that...Ch. 23 - Figure 23.25 Which of the following statements...Ch. 23 - Figure 23.28 Which of the following statements...Ch. 23 - What event is thought to have contributed to the...Ch. 23 - Which characteristic is shared by prokaryotes and...Ch. 23 - Mitochondria most likely evolved by ___________ ....Ch. 23 - Which of these protists is believed to have...Ch. 23 - In 2016, scientists published the genome of...Ch. 23 - Which of the following observations about a...Ch. 23 - Protists that have a pellicle are surrounded by...
Ch. 23 - Piotists with the capabilities to perform...Ch. 23 - Which of these locomotor organs would likely be...Ch. 23 - Alternation of generations describes which of the...Ch. 23 - The amoeba E. histolytica is a pathogen that forms...Ch. 23 - Which protist group exhibits mitochondrial...Ch. 23 - Conjugation between two Paramecia produces total...Ch. 23 - What is the function of the raphe in diatoms?...Ch. 23 - What genus of piotists appears to contradict the...Ch. 23 - A marine biologist analyzing water samples notices...Ch. 23 - An example of carbon fixation is photosynthesis...Ch. 23 - Which parasitic protist evades the host immune...Ch. 23 - Which of the following is not a way that piotists...Ch. 23 - Describe the hypothesized steps in the origin of...Ch. 23 - Some aspects of eukaryotes are more similar to...Ch. 23 - Explain in your own words why sexual reproduction...Ch. 23 - Giaidia iamblia is a cyst-forming protist parasite...Ch. 23 - Explain how the definition of protists ensures...Ch. 23 - The chllorophyte (green algae) genera Ulva and...Ch. 23 - Why might a light-sensing eyespot be ineffective...Ch. 23 - Opisthokonta includes animals and fungi, as well...Ch. 23 - Describe two ways in which paramecium differs from...Ch. 23 - How does killing Anopheles mosquitoes affect the...Ch. 23 - Without treatment, why dees African sleeping...Ch. 23 - Describe how increasing stress to the ocean would...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
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- After 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_forwardFigure 23.25 Which of the following statements about Paramecium sexual reproduction is false? The macronuclei are derived from micronuclei. Both mitosis and meiosis occur during sexual reproduction. The conjugate pair swaps macronuclei. Each parent produces four daughter cellsarrow_forwardDraw a simple diagram illustrating alternation of generations in plants, including the sporophyte and gametophyte generations, spores, gametes (eggs and sperm), meiosis, and fertilization. Be sure to indicate whether each generation or kind of cell is haploid or diploid.arrow_forward
- Fusion of cytoplasm which happens when two hyphae of genetically compatible mating types come together during sexual reproduction, is called: * O zygote formation O karyogamy none is correct plasmogamy fertilizationarrow_forwardThe leafy, green moss plants that are familiar are gametophytes, haploid plants. This is very different from flowering plants and other seed plants. Does a leafy green moss plant grow from a spore or from a fertilized egg? Does the moss plant have both paternal parent and maternal parent?arrow_forwardIn ferns, which of these would be formed by meiosis inside a sporangium? haploid spores diploid spores diploid zygote haploid spermarrow_forward
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