Question

生物类文献翻译

primary mtDna mutations cause maternally inherited
disorders, the severity of which is loosely correlated with the
amount of mutant mtDna—that is, the level of heteroplasmy.

Answer 1

最初的mtDNA(线粒体DNA)变异导致母系遗传障碍。严重令变异的mtDNA疏松地结合在一起，这是质异性。

Answer 2

初步的mtDNA(线粒体DNA)变异引起母系遗传紊乱。其严重性与变异的mtDNA的量不大紧密地相关，也就是处于异质性的水平。

追问

Direct manipulation of mtDNA the generation of heteroplasmic mice with pathological mtDna
mutations would be an important tool for understanding mtDna segregation

追答

带有病理性mTDNA变异的这一代异质性小鼠将是了解mtDNA离析的重要工具。
mtDNA的直接操作。
说明：Direct manipulation of mtDNA 和后面the generation of……联系不起来，所以分开译。