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gamete |
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gamete (găm`ēt): see reproduction reproduction, capacity of all living systems to give rise to new systems similar to themselves. The term reproduction may refer to this power of self-duplication of a single cell or a multicellular animal or plant organism. ..... Click the link for more information. . gamete a haploid germ cell, such as a spermatozoon or ovum, that fuses with another germ cell during fertilization gamete [′ga‚mēt] (biology) A cell which participates in fertilization and development of a new organism. Also known as germ cell; sex cell. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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In 2000, he came up with the novel idea of replacing the test tube used for in vitro fertilisation by a permeable capsule, inserted in the mother's uterus, so that gametes (spermatozoa, ovules) and/or embryos would develop under more natural conditions, in vivo. IVF is of two kinds: heterologous, fusion of gametes of at least one donor other than the married spouses, and homologous, IVF between husband and wife. Among the animals that are simultaneously male and female, Michiels distinguishes between hermaphrodites where partners make contact to achieve internal fertilization and those in which at least one of the partners releases a cloud of gametes, so the partners don't themselves make physical contact. |
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