Isogamy is a form of sexual reproduction that involves gametes of the same morphology (indistinguishable in shape and size), and is found in most unicellular...
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mating individuals can be the same size and shape, a condition known as isogamy. By contrast, in the majority of species, the gametes are of different...
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anisogamous reproduction system, wherein gametes are of different sizes (unlike isogamy where they are the same size). The exact mechanism of female gamete evolution...
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often fail to account for why isogamy remains in a few species. Anisogamy appears to have evolved multiple times from isogamy; for example, female Volvocales...
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haploid organism. In either case, the gametes may be externally similar (isogamy) as in the green alga Ulva or may be different in size and other aspects...
66 KB (7,646 words) - 03:19, 29 August 2024
difference between females and males. Anisogamy most likely evolved from isogamy. Since the biological definition of male and female is based on gamete...
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some algae. The ancestral state of sexual reproduction is believed to be isogamy, with oogamy evolving through anisogamy. Once oogamy evolves, males and...
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Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
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2012). "Evolutionary trajectories explain the diversified evolution of isogamy and anisogamy in marine green algae". Proceedings of the National Academy...
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characteristic functions and statistical mechanics Sexual conjugation, a type of isogamy in unicellular eukaryotes Bacterial conjugation, a mechanism of exchange...
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Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
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separable properties and then may be given other different names (see isogamy). Because both gametes look alike, they generally cannot be classified...
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Anisogamy Biological reproduction Dioecy Heterosexuality Hermaphroditism Isogamy Mate choice Mating in fungi Operational sex ratio Outcrossing Allogamy...
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Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
29 KB (3,084 words) - 09:25, 28 August 2024
Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
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hypnospores, or a palmella stage, while its sexual reproduction is through isogamy, anisogamy or oogamy. Most species are obligate phototrophs but C. reinhardtii...
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variable Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Reproductive system Sex organ Mating Meiosis Gametogenesis Spermatogenesis...
155 KB (14,599 words) - 22:40, 28 August 2024
occurs when food is scarce or the environment changes drastically. Both isogamy and anisogamy occur in Protozoa, anisogamy being the more common form of...
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accepted that isogamy is the ancestor to sperm and eggs. Because there are no fossil records of the evolution of sperm and eggs from isogamy, there is a...
30 KB (3,401 words) - 06:05, 28 May 2024
Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
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vegetative and posterior reproductive cells. Sexual reproduction varies from isogamy (both genders produce flagellated gametes of equal size) to oogamy (one...
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Pennate diatom (morphological isogamy, physiological anisogamy)...
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Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
25 KB (3,262 words) - 21:24, 27 August 2024
Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
20 KB (2,321 words) - 02:02, 30 July 2024
Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
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Siboga-expedition. As early as 1803 Jean Pierre Étienne Vaucher had published on the isogamy (sexual conjugation) in the algae, but it was in the early 20th century...
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Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
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cases, e.g., in fungi no distinguishable male or female organs exist (see isogamy); however, mating types in some fungal species are somewhat analogous to...
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conifers and flowering plants, they are replaced by pollen grains. In isogamy, the gametes look alike and cannot be classified into "male" or "female...
2 KB (264 words) - 20:52, 22 August 2024
Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete spermatozoon...
30 KB (3,662 words) - 20:24, 2 August 2024