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Sexual reproduction by the fusion of dissimilar gametes.Often contrasted with isogamy
- ‘The principle behind anisogamy is a division of the labour necessary for two gametes to unite and successfully develop.’
- ‘Isogamy and anisogamy, and sometimes oogamy, may occur.’
- ‘Orders that are characterized by oogamy (or pronounced anisogamy) and are reported to have large female gametes have the largest nuclear genomes observed regardless of their phylogenetic position.’
- ‘A popular theory has proposed that anisogamy originated through disruptive selection acting on an ancestral isogamous population.’
- ‘Since anisogamy (gametes of different sizes: eggs and sperm) is what defines the sexes it is thus a prerequisite for sexual dimorphism.’
- ‘Meiosis produces 4 gametes, ie. isogamy, anisogamy and oogamy, which through mitosis develops into mature gametes.’
- ‘In many species with gametes of different sizes (anisogamy), sexual crosses typically produce progeny with mitochondrial DNA inherited from the larger gamete.’
Late 19th century: from Greek anisos ‘unequal’ + -gamy (from gamos ‘marriage’).
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