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SSS 2009-09-16

时间:2010-05-19 00:59来源:互联网 提供网友:mark@li   字体: [ ]
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    (单词翻译:双击或拖选)

Now, here’s something you don’t see every day: scientists cure color-blind monkeys. According to a report published online in the journal Nature, researchers have used gene1 therapy to allow color-blind squirrel monkeys to look at their fruit in a whole new light.

In one type of squirrel monkey, the males lack a visual pigment2 called L-opsin. Its absence renders the monkeys color-blind, unable to distinguish reds and green. Most of the females, on the other hand, see in full color. So the scientists got to wondering: what would happen if they gave a boy squirrel monkey the same opsin that girls have.

Using a harmless virus, the scientists introduced the pigment gene into the eyes of color-blind adults. Lo and behold3, about a month later, the monkeys with the new L-opsin gene were able to see hues4 they’d never seen before.

The research doesn’t mean we’ll soon be trying the same thing in humans. Because we’re not yet ready to monkey with our own selves that way. But the fact that a fellow primate5 was able to make and use the new pigments6, even though they received the genes7 as adults, was a real eye-opener.

—Karen Hopkin

 


点击收听单词发音收听单词发音  

1 gene WgKxx     
n.遗传因子,基因
参考例句:
  • A single gene may have many effects.单一基因可能具有很多种效应。
  • The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一。
2 pigment gi0yg     
n.天然色素,干粉颜料
参考例句:
  • The Romans used natural pigments on their fabrics and walls.古罗马人在织物和墙壁上使用天然颜料。
  • Who thought he might know what the skin pigment phenomenon meant.他自认为可能知道皮肤色素出现这种现象到底是怎么回事。
3 behold jQKy9     
v.看,注视,看到
参考例句:
  • The industry of these little ants is wonderful to behold.这些小蚂蚁辛勤劳动的样子看上去真令人惊叹。
  • The sunrise at the seaside was quite a sight to behold.海滨日出真是个奇景。
4 hues adb36550095392fec301ed06c82f8920     
色彩( hue的名词复数 ); 色调; 信仰; 观点
参考例句:
  • When the sun rose a hundred prismatic hues were reflected from it. 太阳一出,更把它映得千变万化、异彩缤纷。
  • Where maple trees grow, the leaves are often several brilliant hues of red. 在枫树生长的地方,枫叶常常呈现出数种光彩夺目的红色。
5 primate A1YzI     
n.灵长类(目)动物,首席主教;adj.首要的
参考例句:
  • 14 percent of primate species are highly endangered.14%的灵长类物种处于高度濒危状态。
  • The woolly spider monkey is the largest primate in the Americas.绒毛蛛猴是美洲最大的灵长类动物。
6 pigments 90c719a2ef7a786d9af119297e63a36f     
n.(粉状)颜料( pigment的名词复数 );天然色素
参考例句:
  • The Romans used natural pigments on their fabrics and walls. 古罗马人在织物和墙壁上使用天然颜料。 来自辞典例句
  • The original white lead pigments have oxidized and turned black. 最初的白色铅质颜料氧化后变成了黑色。 来自辞典例句
7 genes 01914f8eac35d7e14afa065217edd8c0     
n.基因( gene的名词复数 )
参考例句:
  • You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因,所以能够活得很长。 来自《简明英汉词典》
  • Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
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