Are gametophyte cells produced by mitosis?
Diploid sporophyte cells undergo meiosis to produce haploid spores. Each spore goes through mitotic divisions to yield a multicellular, haploid gametophyte. Mitotic divisions within the gametophyte are required to produce the gametes.
What are the functions of gametophyte?
A major function of the gametophyte generation is to produce haploid gametes. Fusion of the egg cell with the sperm cell gives rise to the sporophyte, thereby completing the life cycle (Raven et al., 1992). In many lower plants, gametophytes are the dominant and free-living generation.
What is a gametophyte simple definition?
A gametophyte (/ɡəˈmiːtəfaɪt/) is one of the two alternating multicellular phases in the life cycles of plants and algae. It is a haploid multicellular organism that develops from a haploid spore that has one set of chromosomes. The gametophyte is the sexual phase in the life cycle of plants and algae.
What do you mean by Gametophytes?
gametophyte, in plants and certain algae, the sexual phase (or an individual representing the phase) in the alternation of generations—a phenomenon in which two distinct phases occur in the life history of the organism, each phase producing the other. The nonsexual phase is the sporophyte.
What is a gametophyte in biology?
What is the definition of gametophyte in biology?
What is a gametophyte for kids?
Fig 4 the fully grown gametophyte is a small flat plant mostly just one layer of cells. Fig 5 after an egg cell near the centre of the gametophyte was fertilized, it grows into a fern plant with leaves and roots. The alternation of generations is an important concept in the evolution of plants.
What best describes a gamete?
A male or female reproductive cell that contains half the genetic information for an organism. In humans the gametes are the sperm and egg cells.