对食品中基因的轻微的变更并不会让食品有毒或有危害性。
Changing a few genes here and there does not make a crop toxic or dangerous.
通过遗传研究我们已经知道，基因调控方式的微小变更会在短时间内导致解剖学上的重大改变。
We now know from genetic studies that small alterations in the regulation of genes can have major anatomical consequences in a short amount of time.
这使对染色体的突变更易受影响，因为任何受损基因都没有双胞胎来掩盖。
This makes them vulnerable to mutations on that chromosome, because any damaged genes have no twin to cover for them.
对于贾第虫属来说，这样的特定变更并不是很明确，或许基因组会提供一些线索。
For Giardia, such a specific alternative is not so clear-cut, but the genome may provide clues.
与微核试验和彗星试验比较证实，L 5 178y细胞TK基因试验检测基因突变更加灵敏。
The study demonstrated that L5178Y TK gene mutation assay ism ore sensitive than micronucleus and comet assay.
与微核试验和彗星试验比较证实，L 5 178y细胞TK基因试验检测基因突变更加灵敏。
The study demonstrated that L5178Y TK gene mutation assay ism ore sensitive than micronucleus and comet assay.
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