The former genes cause neurological diseases, such as Tay-Sachs, Gaucher's and Niemann-Pick.

前者会引发神经性疾病，如泰萨二氏病、脑苷脂沉积病和神经鞘磷脂沉积病；

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For some rare disorders, such as Huntington's and Tay-Sachs, genetic information is a diagnosis.

对一些罕见疾病，如亨廷顿氏舞蹈病和黑蒙性痴呆，通过基因信息就可以诊断。

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PGD is good for screening for specific genetic disorders such as cystic fibrosis and Tay-Sachs disease, and also can be used to select gender.

PGD适用于特殊遗传病的筛查，如囊性纤维化和神经节苷脂病，而且PGD也可以用于性别选择。

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For example,husbands and wives in some ethnic groups are tested for the possibility of having a child with Tay-Sachs.

VOA: special.2010.03.23

"It was putting a face on Tay-Sachs, " says Ms. Harney, who works at an auto-insurance company.

WSJ: New Study Looks at Irish Risk for Tay-Sachs Disease

The Mitchell's son, Harrison, died from Tay-Sachs in 2010, shortly before his sixth birthday.

WSJ: New Study Looks at Irish Risk for Tay-Sachs Disease

They carry the mutation for Tay-Sachs disease nine times more often than the general population.

ECONOMIST: A test of uncertainty