Briefly describe alternation of generations in plants. Be sure to include a description of what alternation of generations is, the names of the generations, and their chromosome number.
Alternation of generations is the alternating of diploid and haploid phases that characterize the life cycle of plants. sporophyte generation, which is diploid (2n) gametophyte generation, which is haploid (n).
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Use your knowledge of alternation of generations to identify labels A–F in the table.A Gametes (n)✔ Spores (2n)
Determine whether each of the following is a characteristic of the life cycle of a seed plant, a seedless plant, or both.Sporophyte generation seedless plantsseed plants✔ both
Determine whether each of the following is a characteristic of the life cycle of a seed plant, a seedless plant, or both.Alternation of generations seedless plantsseed plants✔ both
Determine whether each of the following is a characteristic of the life cycle of a seed plant, a seedless plant, or both.Double fertilization seedless plants✔ seed plantsboth
Which of the following did you include in your answer? Check all that apply.
B Mitosis✔ Meiosis
Pollination seedless plants✔ seed plantsboth
Produce spores seedless plantsseed plants✔ both
Gametophyte generation seedless plantsseed plants✔ both
C ✔ GametophyteSporophyte
Sporophyte contains male and female reproductive structures seedless plants✔ seed plantsboth
Sperm cells travel down tube to ovule seedless plants✔ seed plantsboth
Endosperm formed seedless plants✔ seed plantsboth
D ✔ Haploid (n)Diploid (2n)
Single fertilization seedless plantsseed plants✔ both
Meiosis seedless plantsseed plants✔ both
Mitosis seedless plantsseed plants✔ both
E ✔ Gametes (n)Spores (2n)
Sperm cells transported by water to egg cells ✔ seedless plantsseed plantsboth
Zygote formed seedless plantsseed plants✔ both
Spores develop into gametophytes seedless plantsseed plants✔ both
F ✔ Mitosis Meiosis
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