Unlike mtDNA, which is outside the nucleus, genes in nuclear DNA become mixed because of genetic recombination, and therefore we can be statistically less certain about their origins.

• 与处于核子外面的线粒体DNA不同。由于遗传重组，核子DNA里面的基因会变得混合起来，因此我们较少可以统计出某些与他们的起源有关的DNA。