The tests could begin - but only on maternal relatives.
测试可以开始了——不过只限女性亲属。
Bodily remains of Marie Antoinette maternal relatives allowed for genetic comparisons to the DNA in the heart using mitochondrial DNA, which is passed down from a mother to her children.
路易十七的母亲玛丽·安托瓦·内特的亲属允许利用线粒体d NA技术，把他的心脏dna和他母亲的遗物进行基因比对，而线粒体d NA是从母亲遗传给其子女。
The authors point out that on a population basis, women should have equal numbers of maternal and paternal extended relatives (not including mothers) with breast cancer.
作者指出，以人群总体为基础，女性应该有同等数目的父系母系亲属（不包括母亲）。
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