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Usually, when we think of DNA, we think of the DNA That's in cells' nucleus, but in fact a cell mitochondrion also contains DNA. In this particular situation, mitochondrial DNA analysis made more sense than nuclear DNA analysis.
翻译：
通常，当我们想到DNA，我们想到的是在细胞核中的DNA，但是实际上细胞线粒体里面也包含DNA，在这种特殊的情况下，线粒体DNA分析就比细胞核DNA分析要有意义很多了
生词：
cell
nucleus
mitochondrion
mitochondrial
made sense
nuclear