我也不太可能被查出有什么严重的、甚至可能会危及生命的疾病基因，比如说亨廷顿舞蹈症等等，因为——谢天谢地——我们家几乎没有什么家族遗传病，估计最可能和我的检查数据相关的都是些普通疾病基因。
I wouldn't expect to find anything serious and potentially life-altering like the Huntington's disease gene in my results, because my family medical history is thankfully rather boring.
如果在胎儿发育中，关键的基因没有正常运作，那将永久改变一个未出生婴儿的生命结构与功能。
If crucial genes are not switched on during foetal development as they should be, that can permanently change the structure and function of an unborn baby for life.
已经知道有特定形式的某段基因可以延长生命，但对于没有那段基因的人来说，却意义不大。
Particular versions of certain genes have been shown to prolong life, but that is no help to those who do not have them.
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