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Q.
In which of following groups of plants, the life cycle includes the gametophytic phase which is dominant, photosynthetic, independent and sexually reproducing?
Main plant body of a bryophyte is gametophyte. Due to presence of chlorophyll it is photosynthetic and autotrophic in nature. 'It. is the dominant phase which produces gametes. Sporophyte develops from zygote formed by gamete fusion and is partially or totally dependent upon gametophyte for nutrition and remainsattached to it throughout the life. In gymnosperms and angiosperms, gametophyte is completely dependent on the sporophyte. In pteridophytes, gametophyte is independent but is not the dominant phase in life cycle.