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Sexual Reproduction |
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sexual reproduction [′sek·shə·wəl ‚rē·prə′dək·shən]
(biology) Reproduction involving the paired union of special cells (gametes) from two individuals. Sexual Reproduction the various types of animal and plant reproduction in which the new organism usually develops from a zygote formed as a result of fertilization, or the fusion of male and female sex cells (gametes). One form of sexual reproduction is parthenogenesis, which is characterized by the development of the new organism from an unfertilized female sex cell. All animal and plant phyla reproduce sexually, although this has not been fully established in bacteria and blue-green algae. The following different types of sexual reproduction and sexual processes are distinguished according to the form, relative size, and mobility of the fusing gametes: isogamy, anisogamy, heterogamy, and oogamy. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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