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Identicals share one of the closest human relationships biologically. They are likely to grow up looking and sounding extremely similar, yet not a 100% match. A small number of genes in the mother's eggs sit outside the nucleus, known as mitochondria

发表于:2018-12-05 / 阅读(45) / 评论(0) 分类 国家地理2007年

'Three-Person Babies' Debate Goes Beyond Science and Religion 三人创造的人类胚胎辩论超越科学和宗教 Britain has become the first country to permit doctors to use genetic material from three people to create human embryos. The process

发表于:2018-12-16 / 阅读(30) / 评论(0) 分类 2015年VOA慢速英语(三)月

Girl In a Country Song - Maddie Tae Well, I wish I had some shoes 嗯 我希望我有双鞋子 On my two bare feet 穿在我光秃秃的脚上 And it's getting kinda cold 天变得有些冷 In these painted on cut-off jeans 在那涂鸦的毛边牛仔裤

发表于:2019-01-10 / 阅读(54) / 评论(0) 分类 2015最新精选英文歌曲

WASHINGTON, April 21 (Xinhua) -- U.S. researchers said Monday that muscle weakness from long-term alcoholism may be due to an inability of mitochondria, the powerhouses of cells, to self- repair. In research conducted with rats, the researchers found

发表于:2019-02-05 / 阅读(87) / 评论(0) 分类 英语新闻

BERLIN, Nov. 9 (Xinhua) -- Germany coach Joachim Loew made two surprises on Friday when he announced his 22-man squad for the upcoming friendly against the Netherlands. Hamburg's goalkeeper Rene Adler returns to the Nationalmannschaft after two years

发表于:2019-02-06 / 阅读(53) / 评论(0) 分类 英语新闻

Reproductive technology 生殖技术 Mum, Dad and Mitomum 妈妈,爸爸与代孕妈妈 Britain may allow babies with three biological parents 英有望允许新生儿有三个亲身父母 ASSISTED reproduction is one of those rare areas in which Br

发表于:2019-02-16 / 阅读(52) / 评论(0) 分类 经济学人科技系列