NEET BIOLOGY

Detailed explanation-1: -Complete answer: In bryophytes, when the two generations are morphologically different, then the type of alternation of generations is known as heteromorphic. The haploid phase (n) is known as the gametophyte or sexual generation.

Detailed explanation-2: -The bryophytes show an alternation of generations between the independent gametophyte generation, which produces the sex organs and sperm and eggs, and the dependent sporophyte generation, which produces the spores.

Detailed explanation-3: -Alternation of generations is common in plants, algae, and fungi. This can be compared to the sexual reproduction in animals where both haploid and diploid cells are found in every generation. Plants alternate between the diploid sporophyte and haploid gametophyte, and between asexual and sexual reproduction.

Detailed explanation-4: -All bryophytes are homosporous. They show heteromorphic alternation of generations because gametophytic and sporophytic bodies are conspicuously different. They show a haplo-diplontic life cycle.

Detailed explanation-5: -Alternation of generations is a life-cycle involving two phases of life, which regularly alternate with each other. In Bryophytes, the first phase is the gametophytic phase, in which gametes are produced, that contain half the number of chromosomes.