Levels of mitochondrial DNA - a female genetic marker only carried down the female line - is similar all along the coast, regardless of language.
不管语言，沿海岸线的线粒体dna的层级——一个女性基因标记只携带了女性线链——是相似的。
2
Use of most molecular marker systems depends on the polymerase chain reaction (PCR), which is an important technique for amplifying specific DNA sequences.
大多数分子标记体系的利用都取决于聚合酶链反应（PCR），这是一项扩增特定DNA序列的重要技术。
3
It also has an extensive database of DNA, the most specific marker of personal identity.