Mitochondria are the tiny compartments (隔间) inside nearly every cell of the body that transform food into useable energy.They have their own DNA，which does not affect characteristics such as appearance.Defective mitochondria are passed down only from the mother.They can lead to brain damage，muscle wasting，heart failure and blindness.The technique uses a modified version to combine the DNA of the two parents with the healthy mitochondria of a donor woman.It results in babies with 0.1% of their DNA from the second woman and is a permanent change that would be passed down through the generations.

　　学习网高中学习网 www.gkxx.com【解题导语】　本文是一篇说明文。英国国会通过了关于从二女一男身上提取DNA来创造婴儿的议案。英国成为了世界上首个立法允许利用三人的基因完成试管婴儿的国家。

　　1．According to the passage，which of the following statements is NOT true?

　　A．The new technique is intended to provide the parents a healthy baby.

　　B．The mitochondrial disease can lead to various fatal illnesses.

　　C．Britain is the first country to have created three­person babies.

　　D．All of Ms Bernadi’s children died of a genetic disease.

　　解析：选C。判断正误题。根据第一段中的“The UK is now set to become the first country to introduce laws to allow the creation of babies from three people.”(英国成为了第一个立法允许用三人的基因完成试管婴儿的国家)可知C项错误。

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