No mutation was found in control group.

对照组未发现此突变。

youdao

Results VHL gene mutation was detected in 10(35.7%) CCRCC tumor samples. There was no mutation detected in all normal kidney tissues.

结果远离肿瘤的正常肾组织中未检测到VHL基因的突变，10例（35·7%）癌组织标本中存在VHL基因的突变。

youdao

Norwegian scientists have analysed samples from more than 70 patients with clinical illness and no further instances of this mutation have been detected.

挪威科学家对从70多名临床疾病患者身上采集的标本作了分析，未发现更多的此类变异情况。

youdao

"When Darwin first proposed his theory in eighteen fifty-nine, he had no concept of a gene, no concept of a chromosome, no concept of mutation, and certainly no concept of things like DNA and RNA."

VOA: special.2009.12.01

The World Health Organisation said this week it had found no evidence of mutation in the virus that had caused the latest Indonesian deaths.

ECONOMIST: Down with the flu | The

Experiments by scientists at Oregon and Portland State Universities leave no doubt that this mutation puts its carriers at a disadvantage.

WSJ: Matt Ridley on Selfish DNA | Mind & Matter

To fix these problems, Ketek grapples onto a second spot inside the bacteria, so bacteria can no longer escape the drug with a single mutation.

FORBES: Antibiotic Breakthroughs Fall Short