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Learn anything interesting?
有什么有趣的事吗?
Yes, actually. UK scientists have been authorised by the government to genetically modify human embryos for research.What they can’t do though is implant modified embryos into women.They talked a lot about gene editing...
当然有。英国科学家获政府批准,以研究为目的修改人类胚胎基因。但他们不能将基因修改的胚胎植入妇女体内。他们还谈论了很多关于基因编辑的事。
Can you explain to us what gene editing is?
你能解释一下什么是基因修改吗?
Mmm… I think this means there are these letters in a code – A-B-C something…I can’t remember exactly…
我认为是指基因的编码由A-B-C什么字母组成,具体的我不记得了。
Gene editing is the ability to manipulate – or control – DNA.And in case you didn’t know, DNA is short for deoxyribonucleic acid – this is a substance in the cells of animals and plants that contains genetic information.And a gene is part of the DNA in the cellthat controls the physical development and behaviour of a plant or animal and is passed on from its parents.
基因编辑是对DNA进行操纵或控制的能力。以免你不知道,DNA是脱氧核糖核酸的缩写。这种物质存在于动植物的细胞内,储存有基因信息。基因是细胞内DNA的一部分,控制着动植物的身体发育和行为方式,从父母那里遗传而来。
Phew! Thanks for the science lesson, Sophie.
唷!苏菲,谢谢你给我上的这堂科学课。
You’re welcome. Now here’s a question for you, Neil:Which science fiction film anticipates gene editing in a dystopian society where humans are genetically engineered?Is it…a) Robocopb) Gattacaor c) Blade Runner
不客气。有一个问题要问你:哪部科幻电影预言了反乌托邦社会的基因编辑,那里的人们接受了基因工程的改造?a) 《机械战警》b) 《千钧一发》还是c) 《银翼杀手》
Mmm… I don’t really understand the question but I’m going to say c) Blade Runner.What’s dystopian?
恩,其实我不太明白这个问题,我选c) 银翼杀手。什么是反乌托邦?
Dystopian means an imaginary society where people are unhappy and afraid.Well, moving on, let’s listen to BBC journalist Fergus Walsh talking about how gene editing works.
反乌托邦指一种假象的社会,人们在其中生活得不幸福,充满恐惧。好了,继续,我们来听听BBC记者Fergus Walsh讲述基因编辑如何起作用。
Think of gene editing as a molecular sat nav.It scans the DNA searching for the error. Then it uses molecular scissors to snip through both strands, which switches off the faulty gene.Or it can repair the code by inserting a healthy copy of the gene.These techniques raise the prospect of treating – even curing – some genetic diseases – and it’s not science fiction.
将基因编辑想象为分子的卫星导航。它对DNA进行扫描来发现漏洞。之后使用分子剪刀将双链剪断,阻断错误的基因。或者可以通过植入健康的基因修复基因编码。这些技术有望治疗甚至治愈一些基因疾病,而且这并不是科幻小说。
So DNA is a set of instructions for how our bodies work written using a chemical code of four letters – A, T, C, G.But sometimes the code contains mistakes.
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