VOA慢速英语 日本培育出转基因猴子

　　VOICE TWO:

　　Later, a male transgenic marmoset reproduced and passed on the green gene to a baby. This is the first time scientists have successfully passed on a foreign gene to a future generation. And, it means that transgenic marmosets can be produced from breeding instead of by the lengthy process of injecting fertilized eggs.

　　The scientists say the marmosets could one day be easily produced for medical research. They could be used to study conditions like Parkinson's disease and Lou Gehrig's disease. A report about the experiment was published last month in Nature magazine.

　　(MUSIC)

　　VOICE ONE:

　　Officials from more than one hundred sixty governments have agreed to ban production of nine of the world's most dangerous chemicals. The agreement was announced last month at a United Nations conference in Switzerland.

　　The chemicals are joining twelve other substances that are already banned under a treaty known as the Stockholm Convention. The treaty was signed in two thousand one.

　　VOICE TWO:

　　The Stockholm Convention governs some kinds of industrial chemicals and pesticides -- products meant to kill insects. These substances can damage the human nervous system and natural defenses against disease. They have also been linked to cancer, reproductive disorders and interfere with normal child development. The substances can also kill people.

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