By the experiment of genetics stability, it showed that genetic variation of the strain had already taken place. It was the highest strain of the tylosin of selective breeding after space mutagenesis.

结合菌株传代稳定性试验，说明该菌株已发生了遗传性变异，是经太空诱变后所选育的泰乐菌素高产菌株。

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This experiment does, however, suggest that genetics alone may explain some cases of SIDS.

然而，这个实验确实表明单从基因角度可以解释SIDS的一些病例的原因。

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The formal genetics of mammalian cells has been dependent on breeding experiment with whole organisms.

哺乳动物细胞的表型遗传学取决于整个机体的繁殖实验。

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Almost all of them, no matter how atrocious their English, can pen detailed descriptions of such obscure subjects as the steps involved in a genetics experiment.

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This experiment does, however, suggest that genetics alone may explain some cases of SIDS. In the past, explanations have concentrated on environmental factors such as the smoking habits of the parents, bacterial infection and (most famously) a baby's sleeping position.

ECONOMIST: Sudden infant death syndrome