Gametophyte

gametophyte
plant producing gametes, that is sex cells; contrast to sporophyte
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
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These spores develop into a gametophyte. These spores and the resulting gametophyte have only half of the total complement of chromosomes.
The gametophyte produces male or female gametes (or both), in a process called mitosis.
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The fern gametophyte has both sexes present and is referred to as a prothallium. Prothallia develop from spores shed from the underside of the sporophyte leaves.
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gametophyte -- The haploid stage in the life cycle of an organism undergoing alternations of generations. The gametophyte is multicellular and mitotically produces gametes. In plants, the gametophyte nourishes the zygote and young sporophyte.
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Gametophyte. Haploid stage in the life cycle of a plant
Generation time. The time period from birth to average age of reproduction
Genetic drift. Changes in allele frequencies that can be ascribed to random effects ...
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gametophyte
(guh-mee-toh-fite)
The multicellular haploid form in organisms undergoing alternation of generations, which mitotically produces haploid gametes that unite and grow into the sporophyte generation.
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gametophyte The haploid, gamete-producing plant in the alternation of generations; undergoes mitosis to produce the haploid gametes, which fuse to form the diploid zygote of the sporophyte.
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Gametophyte in plants and algae the 1n generation which produces gametes (eggs and sperm)
(gamet = marriage reproduction; phyto = plant) ...
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gametophyte
The part of the life cycle of plants having haploid nuclei and giving rise to the sex cells that on fusing produce a diploid stage, usually the sporophyte.
Covered in: ...
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Gametophyte
: The haploid, gamete-forming (sexual) generation in plants with
alternation of generations
. Typically it is produced from a haploid spore. See also
sporophyte
.
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The gametophyte generation begins with a spore produced by meiosis. The spore is haploid, and all the cells derived from it (by mitosis) are also haploid.
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The alternation of gametophyte and sporophyte stages in the life cycle of a plant.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
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In these the gametophyte stage is completely reduced, and the sporophyte begins life inside an enclosure called a seed, which develops while on the parent plant, and with fertilisation by means of pollen grains.
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The spores germinated normally and grew into diploid gametophytes. These did not appear to produce antheridia. Nonetheless, a subsequent generation of tetraploid sporophytes was produced.
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