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Biological life cycle - Haplontic life cycle | | Biological life cycle - Haplontic life cycle: Encyclopedia II - Biological life cycle - Haplontic life cycle | | A zygotic meiosis is a meiosis of a zygote immediately after karyogamy, which is the fusion of two cell nuclei. This way, the organism ends its diploid phase and produces several haploid cells. These cells divide mitotically to form either larger, multicellular individuals, or more haploid cells. Two opposite types of gametes (e.g., male and female) from these individuals or cells fuse to become a zygote.
In the whole cycle, zygotes are th ...
See also:Biological life cycle, Biological life cycle - Haplontic life cycle, Biological life cycle - Diplontic life cycle, Biological life cycle - Diplobiontic life cycle | | | Biological life cycle, Biological life cycle - Diplobiontic life cycle, Biological life cycle - Diplontic life cycle, Biological life cycle - Haplontic life cycle | | |
| | | Biological life cycle: Encyclopedia II - Biological life cycle - Haplontic life cycle
Biological life cycle - Haplontic life cycle
A zygotic meiosis is a meiosis of a zygote immediately after karyogamy, which is the fusion of two cell nuclei. This way, the organism ends its diploid phase and produces several haploid cells. These cells divide mitotically to form either larger, multicellular individuals, or more haploid cells. Two opposite types of gametes (e.g., male and female) from these individuals or cells fuse to become a zygote.
In the whole cycle, zygotes are the only diploid cell; mitosis occurs only in the haploid phase.
The individuals or cells as a result of mitosis are haplonts, hence this life cycle is also called haplontic life cycle. Haplonts are:
- All fungi
- Some green algae
- Many protozoa
Other related archivesAlternation of generations, Animals, Biological reproduction, Biology, Cell division, Reproduction, algae, alternation of generations, asexual reproduction, brown algae, cell nuclei, diploid, fertilization, fungi, gamete, gametes, gametophytes, generation, green algae, haploid, higher plants, karyogamy, meiosis, mitoses, mitosis, mitotically, parasitic, plants, ploidy, protozoa, seaweeds, sexual reproduction, spore, sporophytes, zygote
 Adapted from the Wikipedia article "Haplontic life cycle", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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