英语词汇“f2”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

i. Biology. F1, F2, etc. = first, second, etc., filial generation (see quot. 1949).

ΚΠ

1902 W. Bateson & E. R. Saunders Rep. to Evol. Comm. Royal Soc. No. 1. 160 The offspring of the first cross are the first filial generation F. Subsequent filial generations may be denoted by F₂, F₃, &c.

1949 C. D. Darlington & K. Mather Elements of Genetics 391 F₁, the first generation of the cross between two individuals homozygous for the particular genes which distinguished them. F₂, the second filial generation obtained by self-fertilizing or crossing inter se individuals of an F₁. F₃, progeny obtained by self-fertilization of an F₂ individual.

1968 M. W. Strickberger Genetics vi. 99 The smooth F₁ seeds..produced upon self-fertilization an F₂ of 5474 smooth seeds and 1850 wrinkled.

单词	f2
释义	> as lemmas F2 i. Biology. F1, F2, etc. = first, second, etc., filial generation (see quot. 1949). ΚΠ 1902 W. Bateson & E. R. Saunders Rep. to Evol. Comm. Royal Soc. No. 1. 160 The offspring of the first cross are the first filial generation F. Subsequent filial generations may be denoted by F₂, F₃, &c. 1949 C. D. Darlington & K. Mather Elements of Genetics 391 F₁, the first generation of the cross between two individuals homozygous for the particular genes which distinguished them. F₂, the second filial generation obtained by self-fertilizing or crossing inter se individuals of an F₁. F₃, progeny obtained by self-fertilization of an F₂ individual. 1968 M. W. Strickberger Genetics vi. 99 The smooth F₁ seeds..produced upon self-fertilization an F₂ of 5474 smooth seeds and 1850 wrinkled. extracted from Fn. < as lemmas
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> as lemmas