Multiple Choice
In what way are all forms of asexual reproduction similar?
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12. Meiosis
Life Cycle of Sexual Reproducers
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In which life stage does a typical moss spend most of its time?
A
Gametophyte stage
B
Zygote stage
C
Spore stage
D
Sporophyte stage
Verified step by step guidance1
Understand that mosses are non-vascular plants and exhibit an alternation of generations, meaning they alternate between two distinct life stages: the gametophyte and sporophyte.
Recall that the gametophyte stage is haploid (contains one set of chromosomes) and is responsible for producing gametes (sperm and egg cells) through mitosis.
Recognize that the sporophyte stage is diploid (contains two sets of chromosomes) and arises after fertilization, producing spores through meiosis. However, in mosses, the sporophyte is typically smaller and dependent on the gametophyte for nutrients.
Note that mosses spend the majority of their life cycle in the gametophyte stage, which is the dominant and photosynthetic stage of their life cycle.
Conclude that the correct answer is the gametophyte stage, as it is the primary and most prominent stage in the life cycle of mosses.
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