What is the ploidy of two daughters of a dividing cell of a hornwort’s gametophyte? Select one: a. aploid b. diploid c. none of these choices d. haploid e. triploid f. tetraploid
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What is the ploidy of two daughters of a dividing cell of a hornwort’s gametophyte?
aploid
diploid
none of these choices
haploid
triploid
tetraploid
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- The 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?Some plants reproduce vegetatively and have a life cycle that features the alternation of haploid and diploid generations. The ii in organisms showing alternation of generations in their life cycles. The statement given above is completed by the information in row i_is genetically is genetically iv and the iii Rowi A. gametophytehaploidsporophyte diploid B. sporophyte haploidgametophytediploid C. sporophyte diploid gametophytetriploid D. gametophytehaploidsporophyte triplod ii 111 liv 1VWhat is a sporophyte? A diploid plant that undergoes meiosis A haploid plant that produces gametes via meiosis A diploid plant that produces gametes via mitosis A haploid plant that undergoes mitosis
- Which of the following pairs of plant structure has the haploid number ofchromosomes? A. Megaspore mother cell and antipodal cells B. Egg cell and antipodal cells C. Egg cell and endosperms D. Microspore mother cell and antipodal cellsWhich of the following IS found in basal land plants (Embryophyta), but NOT found in Chara?a. Multicellular gametangia with sterile jacket.b. Diploid mitosis.c. Photoautotrophous gametophyted. Haploid mitosis.e. Sperm cells with two flagellaIn plant life cycles, (a) the first products of meiosis are gametes (b) spores are part of the diploid sporophyte generation (c) the embryo gives rise to a zygote (d) the first stage in the diploid sporophyte generation is the zygote (e) the first stage in the haploid gametophyte generation is the prothallus
- Figure 24.14 Which of the following statements is true? A dikaryotic ascus that forms in the ascocarp undergoes karyogamy, meiosis, and mitosis to form eight ascospores. A diploid ascus that forms in the ascocarp undergoes karyogamy, meiosiis, and mitosis to form eight ascospores. A haploid zygote that forms in the ascocarp undergoes karyogamy, meiosiis, and mitosis to form eight ascospores. A dikaryotic ascus that forms in the ascocarp undergoes plasmogamy, meiosis, and mitosis to form eight ascospores.What are the products of double fertilization?a. Two diploid zygotesb. A diploid zygote and a triploid endospermc. A haploid sperm and a diploid zygoted. A triploid zygoteThe embryo found in the mosses, ferns, pines, and flowering plants is; Haploid Diploid Neither
- The conifer plant has 12 chromosomes. For each of the four stages on the diagram of the conifer life cycle, labelled A-D, identify whether the stage is haploid or diploid, and indicate the number of chromosomes that would be found in the cells at each stage. Stage Haploid or Diploid? Number of chromosomes found in cells? A B C DTomato has diploid chromosomes number of 24. How many chromosomes would be expected in: microspore mother cell a leaf cell an endosperm cell an egg nucleus a sperm nucleusThe megaspore mother cell of an angiosperm has a diploid chromosome number of 2n=32. This megaspore mother cell undergoes meiosis to form 4 megaspores where only 1 survives while the other 3 died. the surviving megaspore undergoes mitosis 3 times to create 8 cells in the embryo sac. 1 egg cell. How many chromosomes are in an egg cell at G1?