部分突变体;部分突变型

fractional mutant的用法和样例：

例句

The mutant DNA miscoded a single amino acid.突变体脱氧核糖核酸误编了一个氨基酸密码。
Brassica napus line Apet33-10 is an apetalous mutant which is controlled by one gene locus.是一个单基因控制的无花瓣甘蓝型油菜突变体。
Benzer's map of the rII region generated from crosses of 60 different mutant T4 strains.利用重组法进行重组测验，计算各种突变型的重组值。

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