sexual reproduction

sexual 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.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Sexual reproduction — is the creation of a new organism by combining the genetic material of two organisms. The two main processes are: meiosis, involving the halving of the number of chromosomes; and fertilization, involving the fusion of two gametes and the… …   Wikipedia

  • sexual reproduction — sexual reproduction. См. половое 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.

  • sexual reproduction — lytinis dauginimas statusas T sritis augalininkystė apibrėžtis Augalų dauginimas sėklomis, kurios gaunamos, išaugus vaisiams žiedų ap(si)dulkinimo būdu. atitikmenys: angl. gamogony; sexual reproduction rus. гамогония; половое размножение ryšiai:… …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • sexual reproduction — reproduction by having sexual intercourse, mating, fertilization and reproduction …   English contemporary dictionary

  • sexual reproduction — Reproduction involving the fusion of two cells (gamete nuclei), resulting from meiosis …   Dictionary of invertebrate zoology

  • sexual reproduction — reproduction by the fusion of a female gamete and a male gamete (called also bisexual r., amphigony, gamogenesis, and syngamy) or by development of an unfertilized egg (called also unisexual r.). See also parthenogenesis …   Medical dictionary

  • sexual reproduction — noun reproduction involving the union or fusion of a male and a female gamete • Syn: ↑amphimixis • Hypernyms: ↑reproduction • Hyponyms: ↑anisogamy, ↑isogamy • Member Meronyms: ↑ …   Useful english dictionary

  • sexual reproduction — Biol. reproduction involving the union of gametes. [1880 85] * * * …   Universalium

  • sexual reproduction — UK / US noun [uncountable] biology reproduction in which male and female cells join together and combine their genetic information to form a new cell, called a zygote …   English dictionary

  • sexual reproduction — The process whereby two gametes fuse to form one fertilized cell (zygote) …   Glossary of Biotechnology

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”