The key feature that distinguishes alternation of generations from other life cycles is O a distinct haploid and diploid phase O multicellular gametophytic and sporophytic phases O fertilization and meiosis marking the boundary between gametophytic and sporophytic generations O double fertilization O distinct cells (megaspore and microspore) that give rise to the egg and sperm cells

The key feature that distinguishes alternation of generations from other life cycles is O a distinct haploid and diploid phase O multicellular gametophytic and sporophytic phases O fertilization and meiosis marking the boundary between gametophytic and sporophytic generations O double fertilization O distinct cells (megaspore and microspore) that give rise to the egg and sperm cells

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter23: Protists

Section: Chapter Questions

Problem 13RQ: Alternation of generations describes which of the following? The haploid form can be multicellular;...

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Question 8 Which of the following meiotic events accounts for the genetic variability we expect in meiosis? Choose all correct answers O Synapsis O Crossing Over O Separation of sister chromatids O Separation of homologous chromosomes O Independent assortment O LUnkage
Question 3 Review the variety of life cycle. This is a multiple answers question. Which statement is true about the life cycles? O In an animal life cycle, meiosis produces gametes (n). Gametes are the only haploid cells in animals In an animal life cycle, zygote divides by mitosis to develop into a multicellular organism. Plants and some algae exhibit an alternation of generations in their life cycles. O In the life cycles of plants and some algae, the diploid sporophyte, makes haploid spores by meiosis. O in the life cycles of plants and some algae, the diploid sporophyte, makes haploid spores by mitosis. O In most fungi and some protists, the only diploid stage is the single-celled zygote; there is no multicellular diploid stage O The haploid adult in fungi and plants produces gametes by mitosis.
Question 5 Review meiosis. This is a multiple answers question. Which statement is true about the meiosis? O Meiosis is preceded by the replication of chromosomes O In early prophase I, each chromosome pairs with its homolog and crossing over occurs O In anaphase I, pairs of homologous chromosomes separate O At the end of meiosis 1, the number of chromosomes is reduced by half and genetic variation is produced. O During Meiosis II, the number of chromosomes is reduced by half and genetic variation is produced.
QUESTION 31 Refer to the life cycles illustrated in the figure below to answer the following questions. Key Haploid (n) Diploid (2n) MEIOSIS 2n Gametes FERTILIZATION Zygote 2n Mitosis Ⓒ Mitosis MEIOSIS 2n Spores Gametes Mitosis FERTILIZATION 2n Mitosis Zygote Mitosis MEIOSIS 0 2n Zygote Mitosis Gametes FERTILIZATION In a life cycle such as that shown in part III of the figure above, if the zygote's chromosome number is ten, which of the following statements will be true? O The sporophyte and gametophyte each have five chromosomes per cell. O The sporophyte's chromosome number per cell is five and the gametophyte's is ten. O The sporophyte and gametophyte each have ten chromosomes per cell. O The sporophyte's chromosome number per cell is ten and the gametophyte's is five.
Lab 11- Mitosis & Meiosis If provided microscope images of plant cells, can you determine if they are in Interphase and/or identify the particular Mitosis stage (Pro, Prometa, Meta, Ana, Telo)? If provided meiosis beads (like what we used in lab), can you look at how they are arranged and determine what meiosis stage is being represented (the stage name and if it's from Meiosis-l or Meiosis-II)?
QUESTION 30 Refer to the life cycles illustrated in the figure below to answer the following questions. Key Haploid (n) Diploid (2n) MEIOSIS 2n Gametes FERTILIZATION Zygote 2n Mitosis Mitosis MEIOSIS Spores Gametes Mitosis FERTILIZATION 2n Mitosis Zygote Which of the life cycles is typical for most fungi and some protists? O I only II only III only O I and II Mitosis MEIOSIS 2n Zygote Mitosis Gametes FERTILIZATION
QUESTIONS Conder a dileid speces tha dglod numbet of 22. Show your work andior explain logc on all parts. o ny tronas noud be found in a cell that is in Metaphase li of meiosis? ny byads would be found in a cell that is in Anaphase iof meosis? Linpaod gamesfrom this speces contans DNA with a mass of 36 picograms, how many picograms of DNA would be in a typical diploid ncoef the ode for the tootar pres T4PATO Mac) BIHS Pragach Ara 14px
QUESTION 8 Which of the following events does not occur during mejosis I? O DNA exchange O crossing-over between homologous chromosomes O separation of sister chromatids O separation of homologous chromosomes O pairing of homologous chromosomes QUESTION 9 The sources of genetic variation during meiosis are: O crossing-over and the random assortment of maternal and paternal chromosomes. O random pairing of tetrads and random assortment of maternal and paternal chromosomes. O crossing-over and random pairing of tetrads. O random pairing of tetrads and mutations. O polyploidy and random pairing of tetrads.
QUESTION 1 What is aneuploidy? Another term for a haploid cell When more than one gene controls a single phenotype When there are more than two alleles of a gene When there are too many or too few of a particular chromosome in cells
There are cells after meiosis I and they are O 2; diploid 2; haploid 4; diploid 4; haploid QUESTION 4 Mitosis results in the formation of O four diploid cells; two haploid cells while meiosis results in the formation of four haploid cells; four haploid cells two diploid cells; four haploid cells two haploid cells; four haploid cells
Alternation of generations means that plants produce: only haploid multicellular organisms only diploid multicellular organisms only diploid multicellular organisms with single-celled haploid gametes both haploid and diploid multicellular organisms
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.