1. The results of a DNA test finally proved her identity, clearing the way for her return to Canada.

最终DNA测试的结果证明了她的身份，为她返回加拿大扫清了道路。

2. "This research lays the scientific basis for the development of a DNA test for hair colour prediction," said Professor Ate Kloosterman of the Netherlands Forensic Institute (NFI).

“这项研究为通过DNA试验预测发色的发展打下了科学上的基础。”荷兰法医学学会（NFI）的艾缇·克鲁斯特门教授如是说。

3. But it requires sequencing a patient’s entire genome. The mitochondrial DNA test is less expensive and so sensitive that a mutation can be picked up from a much smaller sample of blood.

虽然这也需要对病人的整个基因组进行测序，不过线粒体DNA的测试费用比较低廉，而且由于基因突变的敏感度较高，可以从更小的血液样本中检测到。