First boer goat with somatic cell cloning tech born |
文章来源： 文章作者： 发布时间：2007-04-11 00:24 字体： [ 大 中 小] 进入论坛 |
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| Chinanews, Beijing, Apr. 10 – China's first boer goat born with somatic cell cloning technology, the second boer goat born with such technology in the world, was produced at the Tianjin Pasturage and Veterinarian Research Institute at 12:40 on Monday, the Beijing News reported.
On Monday afternoon, this reporter saw the little goat at the lab base in the Tianjin Pasturage and Veterinarian Research Institute. The new-born goat was white in color and had a brown head, a typical feature of the boer goat. The parent goat had white hair all over its body. The baby cloned goat is named “Jin Ying,” which means the "hero in Tianjin".
The somatic cell cloning boer goat project was led by Liu Ling, a Chinese American cloning expert. The project was kicked off in 2000. In 2003, scientists injected the ear skin cells taken from an Australian boer goat ( the goat died in 2003) into the egg cell of an ordinary goat after scientists took out its cell nucleus1. Scientists then transplanted the cloned embryo2 into the body of a receptor goat. Through hundreds of experiments, scientists finally managed to transplant the cloned embryo into the body of an ordinary female goat. After 155 days of pregnancy3, the female goat produced a 5.5-kilogram female baby goat, which carried the same genetic4 information as the original boer goat.
Since Jin Ying was large physically5, scientists had worried that it might die before it was born, or might have some sequelae after it was born. So scientists had intended to give a Caesarean operation to the mother goat. In the end, the baby cloned goat was delivered smoothly6 in one hour on Monday morning.
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点击  收听单词发音
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1
nucleus
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| n.核，核心，原子核 |
参考例句： |
- These young people formed the nucleus of the club.这些年轻人成了俱乐部的核心。
- These councils would form the nucleus of a future regime.这些委员会将成为一个未来政权的核心。
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2
embryo
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| n.胚胎，萌芽的事物 |
参考例句： |
- They are engaging in an embryo research.他们正在进行一项胚胎研究。
- The project was barely in embryo.该计划只是个雏形。
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3
pregnancy
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| n.怀孕，怀孕期 |
参考例句： |
- Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
- Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。
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4
genetic
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| adj.遗传的，遗传学的 |
参考例句： |
- It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
- Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
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5
physically
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| adj.物质上，体格上，身体上，按自然规律 |
参考例句： |
- He was out of sorts physically,as well as disordered mentally.他浑身不舒服，心绪也很乱。
- Every time I think about it I feel physically sick.一想起那件事我就感到极恶心。
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6
smoothly
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| adv.平滑地，顺利地，流利地，流畅地 |
参考例句： |
- The workmen are very cooperative,so the work goes on smoothly.工人们十分合作，所以工作进展顺利。
- Just change one or two words and the sentence will read smoothly.这句话只要动一两个字就顺了。
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