Anisogamy is a form of sexual reproduction that involves the union or fusion of two gametes that differ in size and/or form. The smaller gamete is male...
37 KB (4,348 words) - 19:32, 7 August 2024
[citation needed] The evolution of anisogamy led to the evolution of male and female function. Before the evolution of anisogamy, mating types in a species were...
25 KB (2,622 words) - 01:41, 7 July 2024
larger than the male and has no ability to move. Oogamy is a form of anisogamy. There is an argument that this pattern was driven by the physical constraints...
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different in size and other aspects (anisogamy). The size difference is greatest in oogamy, a type of anisogamy in which a small, motile gamete combines...
66 KB (7,646 words) - 11:51, 30 August 2024
of species, the gametes are of different sizes, a condition known as anisogamy or heterogamy that applies to humans and other mammals. The human ovum...
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both gametes to a zygote in contrast to a later evolutional stage of anisogamy. The term isogamous was first used in the year 1887.[who?] Isogamous species...
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Oogamy is a form of anisogamy where the gametes differ in both size and form. In oogamy the large female gamete (also known as ovum) is immotile, while...
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are behavioral and population genetic. The genetic aspect states that anisogamy arose to maximize contact rate between gametes. The behavioral aspect...
21 KB (2,118 words) - 17:02, 25 March 2024
sexual dimorphism is the size differentiation of sperm and eggs (anisogamy).: 917 Anisogamy and the usually large number of small male gametes relative to...
106 KB (12,407 words) - 03:44, 24 August 2024
paramesonephric duct, a mesonephric duct, and a genital tubercle. The evolution of anisogamy may have contributed to the evolution of simultaneous hermaphroditism...
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Monogamy in animals (section Anisogamy)
ascertained, there are several theories as to how monogamy may have evolved. Anisogamy is a form of sexual reproduction which involves the fusion of two unequally-sized...
48 KB (6,174 words) - 02:01, 26 July 2024
2020-10-05 Kumar R, Meena M, Swapnil P (2019). "Anisogamy". In Vonk J, Shackelford T (eds.). Anisogamy. Encyclopedia of Animal Cognition and Behavior....
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or the environment changes drastically. Both isogamy and anisogamy occur in Protozoa, anisogamy being the more common form of sexual reproduction. Protozoans...
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(biology) Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete...
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possible in some species, where in others it is absent. The evolution of anisogamy possibly contributed to the evolution of Simultaneous hermaphroditism...
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Gonochorism owes its origin to the evolution of anisogamy, but it is unclear if the evolution of anisogamy first led to hermaphroditism or gonochorism.: 213 ...
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(biology) Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete...
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homologous recombinational repair of DNA damage. Amphimixis (psychology) Anisogamy Biological reproduction Dioecy Heterosexuality Hermaphroditism Isogamy...
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(biology) Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete...
29 KB (3,084 words) - 09:25, 28 August 2024
(biology) Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete...
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or a palmella stage, while its sexual reproduction is through isogamy, anisogamy or oogamy. Most species are obligate phototrophs but C. reinhardtii and...
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physical characteristics of sex, but bodily sex does not determine gender." Anisogamy, or the size differences of gametes (sex cells), is the defining feature...
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Pennate diatom (morphological isogamy, physiological anisogamy)...
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have arisen as a result of anisogamy (gamete dimorphism), or the male and female sexes may have evolved before anisogamy. It is also unknown why most...
103 KB (11,945 words) - 18:26, 20 August 2024
(biology) Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete...
18 KB (1,951 words) - 01:36, 27 August 2024
(biology) Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete...
25 KB (3,262 words) - 21:24, 27 August 2024
biological variable Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Reproductive system Sex organ Mating Meiosis Gametogenesis...
155 KB (14,599 words) - 07:14, 30 August 2024
(biology) Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete...
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F. Smith in 1972, he proposed a leading theory for the evolution of anisogamy and two sexes, and in 1979 made the first theoretical analysis of sexual...
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(biology) Mating type Sexual reproduction Evolution of sexual reproduction Anisogamy Isogamy Germ cell Meiosis Gametogenesis Spermatogenesis Oogenesis Gamete...
45 KB (5,143 words) - 22:42, 23 July 2024