asexual reproduction

asexual reproduction
Reproduction Re`pro*duc"tion (-d?k"sh?n), n. [Cf. F. reproduction.] 1. The act or process of reproducing; the state of being reproduced; specifically (Biol.), the process by which plants and animals give rise to offspring. [1913 Webster]

Note: There are two distinct methods of reproduction; viz.: {asexual reproduction} (agamogenesis) and {sexual reproduction} (gamogenesis). In both cases the new individual is developed from detached portions of the parent organism. In asexual reproduction (gemmation, fission, etc.), the detached portions of the organism develop into new individuals without the intervention of other living matter. In sexual reproduction, the detached portion, which is always a single cell, called the female germ cell, is acted upon by another portion of living matter, the male germ cell, usually from another organism, and in the fusion of the two (impregnation) a new cell is formed, from the development of which arises a new individual. [1913 Webster]

2. That which is reproduced. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • Asexual reproduction — in liverworts: a caducous phylloid germinating Asexual reproduction is a mode of reproduction by which offspring arise from a single parent, and inherit the genes of that parent only, it is reproduction which does not involve meiosis, ploidy… …   Wikipedia

  • asexual reproduction — n reproduction (as cell division, spore formation, fission, or budding) without union of individuals or gametes * * * reproduction without the fusion of gametes, as by fission or budding …   Medical dictionary

  • asexual reproduction — Reproduction that does not involve the formation and union of gametes from the different sexes or mating types. It occurs mainly in lower animals, micro organisms and plants. In plants, asexual reproduction is by vegetative propagation (e.g.… …   Glossary of Biotechnology

  • asexual reproduction — asexual reproduction. См. бесполое размножение. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • asexual reproduction — noun reproduction without the fusion of gametes • Syn: ↑agamogenesis • Derivationally related forms: ↑agamogenetic (for: ↑agamogenesis) • Hypernyms: ↑reproduction …   Useful english dictionary

  • asexual reproduction — nelytinis dauginimas statusas T sritis augalininkystė apibrėžtis Dauginimas sporomis ir įvairiomis vegetatyvinėmis dalimis, t. y. be ap(si)vaisinimo. atitikmenys: angl. asexual reproduction; monogenesis rus. бесполое размножение; моногенез ryšiai …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • asexual reproduction — Reproduction or propagation that doesn t involve the union of gametes …   Combined glossary of agriculture

  • asexual reproduction — reproduction which does not involve sexual processes …   English contemporary dictionary

  • asexual reproduction — noun a) Any form of reproduction that does not involve the fusion of gametes. b) Any form of reproduction that involves neither meiosis nor fusion of gametes. Ant: sexual reproduction …   Wiktionary

  • asexual reproduction — Any method of reproduction not involving fertilization, as that by fission, fragmentation, spore production, budding, vegetative reproduction, and gemmule formation …   Dictionary of invertebrate zoology

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