Gametophyte
Haploid stage in the life cycle of plants and algae
Gametophyte
A gametophyte () is one of the two alternating multicellular phases in the life cycles of plants. 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. It develops sex organs that produce gametes, haploid sex cells that participate in fertilization to form a diploid zygote, which has a double set of chromosomes. Cell division of the zygote results in a new diploid multicellular organism, the second stage in the life cycle known as the sporophyte. The sporophyte can produce haploid spores by meiosis that on germination produce a new generation of gametophytes.
Read on Wikipedia · Image Alternation of generations.svg: Peter coxhead / derivative work: Peter coxhead, Public domain
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