The genetic switch involves acetylation, the introduction of an acetyl group into a molecule at the DNA level of chromatin resulting in genetic transcription.

基因“开关”涉及乙酰化作用，也就是将乙酰基群在染色质的DNA水平上引入到分子中，由此完成基因转录。

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After the introduction of the bacteria extract injected into the muscles this was extended by an average 308 days, whereas the control group continued to die about a year earlier.

在引进的细菌提取物注射到老鼠的肌肉中之后，它们的寿命平均延长了308天，而控制组的老鼠大约一年前就死去了。

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One group of children had a strictly pedagogical introduction.

第一组孩子接受了一套严格的教学指导。

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Right at the beginning of this event there was an introduction by a group called Champion the Vote.

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The Trusted Computing Group Storage Technical Working Group has been leading the digital storage industry in the introduction of storage security built into individual storage devices.

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