“polyhybrid”的英文意思_释义_用法

单词

polyhybrid

释义

polyhybrid, n. and a. Biol.|pɒlɪˈhaɪbrɪd|
[f. poly- + hybrid n. and a.]
A. n. A hybrid that is heterozygous at several genetic loci.
B. adj. Of, pertaining to, or characteristic of such a hybrid, or a cross resulting in one.
1911Farmer & Darbishire tr. H. De Vries's Mutation Theory II. 586 The di-polyhybrids are mongrels whose parents differ from one another in respect of two or more elementary characters.Ibid. 681/1 (Index), Polyhybrids, 586.1922Hereditas III. 233 The segregation is evidently polyhybrid showing transgression in one direction.1965Bell & Coombe tr. Strasburger's Textbk. Bot. 334 The genetic consequences of crossing both dihybrids and polyhybrids are directly dependent upon the manner in which the chromosomes are distributed at the reductional division.

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