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单词 germ stock
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germ stock
germ stock n. [in sense (a) after German Keimstock (1837 in the passage translated in quot. 1842)] (a) any of several types of reproductive structure in invertebrates; esp. a part of the body from which new individuals arise asexually, usually by budding (now disused); (b) a supply of genetic material; a gene pool.
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1842 W. Baly tr. J. Müller Elements Physiol. II. vii. 1442 In Cœnurus, the vesicles which bear the numerous heads are at the same time germ-stocks, upon which the new individuals are developed as buds.
1857 Q. Jrnl. Microsc. Soc. 5 224 I would retain the denominations ‘germ-body’ and ‘germ-stock’ for these reproductive organs of the viviparous Aphides.
1885 A. Sedgwick & F. G. Heathcote tr. C. Claus Elem. Text-bk. Zool.: Mollusca to Man 89 The budding takes place on different parts of the body, sometimes is confined to definite places or to a germ-stock (stolo prolifer).
1910 G. Leighton Sci. Christianity x. 182 When the son, too, is a mathematician, like the father, it is because both come from a common germ-stock, which gives rise to brains of a given quality, a given capacity for acquiring mental traits.
2008 J. D. Watson in J. A. Witkowski & J. R. Inglis Davenport's Dream 11 29 states maintained laws against black-white intermarriages, often using the argument that the superior white germ stock would be diluted with inferior genes.
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