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单词 gamete
释义

gameten.

Brit. /ˈɡamiːt/, /ɡəˈmiːt/, U.S. /ˈɡæˌmit/, /ɡəˈmit/
Forms: 1800s– gameta, 1800s– gamete.
Origin: A borrowing from German. Etymon: German Gamet.
Etymology: < German Gamet (E. Strasburger 1877, in Bot. Zeitung 35 756) < ancient Greek γαμέτης husband (or γαμετή wife) < γαμεῖν to marry (see -gam comb. form) + -της (or -τή), suffix forming agent nouns.In form gameta as a Latinized form; compare -a suffix1.
Biology.
Each of the two reproductive cells, typically haploid and distinguishable into male and female types, which fuse to form a zygote in sexual reproduction; a fully mature germ cell; an egg cell or sperm cell.See also anisogamete and isogamete.
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > reproductive substances or cells > [noun] > gametes
gamete1878
zoogamete1879
planogamete1880
macrogamete1888
microgamete1888
isogamete1891
megagamete1891
oogamete1891
progamete1892
heterogamete1897
ovum1900
non-crossover1914
merogamete1925
hologamete1926
anisogamete-
1878 Jrnl. Bot., Brit. & Foreign 16 57 For the swarm-spores the term ‘gametes’ is proposed, the spore being called ‘gametangium’. The mass of copulated gametes is called a ‘zygote’.
1899 Nature 21 Sept. 509/1 Heredity, then, is really applicable only to the appearance in a zygote of some of the properties of the gametes.
1914 Pop. Sci. Monthly June 525 The sperm, or male gamete, is among the smallest of all cells and is usually many thousands of times smaller than the egg.
1945 Brit. Med. Jrnl. 17 Feb. 236/1 Artificial insemination is proposed only for that..unfortunate minority of couples who are sterile due to some fault in the husband's sperm or to incompatibility between otherwise normal gametes.
1975 Times 7 Aug. 14/5 When gametes are formed from a heterozygous plant all sorts of different genetic combinations are produced, which on fertilization produce a wide range of plant types.
1998 Church Times 20 Nov. 14/4 It is difficult to make sense of a determination to encourage a responsible attitude to parenthood while the state fails to take a critical view of the practice of anonymous donation of gametes.
2011 Herald-Times (Bloomington, Indiana) 16 Dec. a7/4 The zygote formed by the union of two gametes is a new individual.

Compounds

C1. General attributive and objective.
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1891 Bot. Gaz. 16 179 A plant which produces gametes (whether they be isogametes..or spermatozoids and eggs—both or either) is a gamete-producing plant or gametophyte.
1914 P. Geddes Sex ii. 45 These foci of gamete-making began to be enclosed..and nourished by adjacent tissue.
1927 J. B. S. Haldane & J. S. Huxley Animal Biol. ii. 63 Before gamete-formation, the two members of such a pair segregate.
1963 R. P. Dales Annelids viii. 164 The posterior gamete-producing segments.
1985 Cambr. Encycl. Life Sci. iii. 115/1 If we consider all the gametes produced by the population as a whole (the ‘gamete pool’) the proportion of gametes carrying allele A will be p and that of gametes carrying allele a will be q.
2007 Globe & Mail (Canada) (Nexis) 17 May l1 The clinic claims to be the first in Canada to provide long-term gamete storage to young men and women who are fertile but not ready to be parents.
C2.
gamete intrafallopian transfer n. Medicine = GIFT n.2
ΘΚΠ
the world > life > biology > biological processes > procreation or reproduction > fecundation or impregnation > [noun] > techniques for facilitating
IVF1978
gamete intrafallopian transfer1984
GIFT1984
ZIFT1988
1984 R. H. Asch et al. in Lancet 3 Nov. 1034/1 We report here the first pregnancy obtained after translaparoscopic gamete intrafallopian transfer (GIFT).
1996 Indianapolis Monthly May 80/2 In the GIFT procedure (short for gamete intrafallopian transfer), extra eggs are surgically transferred to the fallopian tubes, where they are inseminated.
2009 H. Murkoff & S. Mazel What to Expect before you’re Expecting 172/2 There's no greater gift than a baby—and gamete intrafallopian transfer (GIFT) is a procedure that can help deliver that gift to hopeful couples.
This entry has been updated (OED Third Edition, March 2013; most recently modified version published online March 2022).
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n.1878
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