Explain alternate of generations in the life cycle of bryophytes.
Explain alternate of generations in the life cycle of bryophytes.
Alternation of generation in the life cycle of bryophyte involves two phase:
1. Gametophytic phase: The gametophytic phase is the first phase and is haploid. This is the dominant phase in the life cycle of bryophyte. In this phase a multicellular haploid gametophyte develops from a spore and produces haploid male and female gametes, which in turn fuse together to form a diploid zygote. The diploid zygote forms a diploid sporophyte.
2. Sporophytic phase : This is the second phase and is diploid. The sporophyte is much smaller and is attached to the gametophyte, by a capsule, a stalk and a foot. The sporophyte produces numerous haplois spores. Each spore germinates to form a new gametophyte, thus completing the alternation of generation of life cycle of bryophyte.
Alternation of generation in the life cycle of bryophyte involves two phase:
1. Gametophytic phase: The gametophytic phase is the first phase and is haploid. This is the dominant phase in the life cycle of bryophyte. In this phase a multicellular haploid gametophyte develops from a spore and produces haploid male and female gametes, which in turn fuse together to form a diploid zygote. The diploid zygote forms a diploid sporophyte.
2. Sporophytic phase : This is the second phase and is diploid. The sporophyte is much smaller and is attached to the gametophyte, by a capsule, a stalk and a foot. The sporophyte produces numerous haplois spores. Each spore germinates to form a new gametophyte, thus completing the alternation of generation of life cycle of bryophyte.
