标签：Gene 相关文章
Heres a tale of genes, smells and pigs. Most people have two copies of a gene that enables them to detect a steroidal pheromone called androstenonewhich is found in male mammals, particularly porkers. But most pigs in developed countries have been ch
Scientific American(五)月
Most people have two copies of a gene that enables them to detect a steroidal pheromone called androstenonewhich is found in male mammals, particularly porkers. But most pigs in developed countries have been chemically castrated. Which means much les
Scientific American(五)月
This is Scientific American 60 science, I am Charles Q. Choi! Psoriasis is an autoimmune diseasethe immune system mistakenly attacks its own body, causing red, itchy, scaly patches on the skin. But there may be a hidden upside. People with psoriasis
Scientific American(三)月
Welcome to This I believe, an NPR series presenting the personal philosophies of remarkable men and women from all walks of life. I believe in honor, faith and service I believe that a little outrage can take you a long way. I believe in freedom of s
2006年NPR美国国家公共电台
From NPR News in Washington, I'm Carol Van Dam. A powerful winter storm is dumping snow on southern states including Alabama and Georgia, and is soon expected to blanket North Carolina before it turns northward. The system is expected to dump severa
2009年NPR美国国家公共电台3月
The Secretary of the US Army delivers a stinging indictment today against those accused of sloppy record keeping at Arlington National Cemetery. And John McHugh tells the families of those resting in that hallowed ground that he is deeply sorry. Toda
2010年NPR美国国家公共电台6月
U.S. job growth ground to a halt in August as government layoffs erased meager gains in the private sector. The Labor Department says American businesses added only 17,000 jobs last month, far short of the 100,000 jobs analysts were expecting. To mak
英语新闻
Rare black penguin in the Antarctic islands The penguin, believed to be suffering from a condition known as melanism, was spotted on Fortuna Bay, a sub-Antarctic island of South Georgia, about 860 miles off the Falklands. 这只被认为患有黑化症
英语笔译
Mutation 突变 Do you know about mutations? 你知道突变吗？ A mutation happens when the DNA structure in a gene changes. 当基因的DNA结构发生变化时就会发生突变。 Once a mutation happens, the change can't be reversed. 突变一旦
与美国小学生一起学英文第12册
Actress Angelina Jolie has had her ovaries and fallopian tubes removed as a preventative measure against cancer. 女星安吉丽娜朱莉摘除了卵巢和输卵管，以预防器官癌变。 Writing in the New York Times, Jolie said she chose to hav
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VOICE ONE: This is SCIENCE IN THE NEWS in VOA Special English. I'm Faith Lapidus. VOICE TWO: And I'm Steve Ember. This week, we will tell how a discovery in Kenya has started a scientific debate about early human ancestors. We also will tell how peo
VOA慢速英语2007年（九）月
This is the VOA Special English Health Report. This year's Nobel Prize in medicine will go to three researchers who found a way to learn about the duties of individual genes. They discovered how to inactivate, or knock out, single genes in laborator
VOA慢速英语2007年（十）月
French Citizen Is Likely Among Militants in Beheading Video A French official says there is a strong likelihood that a French citizen was among the Islamic militants who executed an American aid worker. Interior Minister Bernard Cazeneuve announced o
2014年VOA慢速英语(十一)月
They are extremely awkward on land, and not exactly graceful in the water. But there's something endearing about these egg-laying mammals. Platypuses can only be found in the rivers, streams and lakes along the east coast of Australia. But they range
自然百科2009年
STEPHEN FEE: Fifty-nine-year-old Karen Sonneberg grew up on the North Shore of Long Island, just an hour's drive from New York City. Her parents survived the Holocaust but rarely mentioned it. KAREN SONNEBERG: All I knew was that we were different, t
PBS访谈健康系列
神探夏洛克第二季第二集_19 你真的没事吗? 瞧你脸色煞白 Are you sure you're OK? You look very peaky. 没事 我很好 No, I'm all right. 想知道的话 那是水母里的绿色荧光蛋白基因 It was the GFP gene from a jellyfi
神探夏洛克第二季
It's called the what? The peach what? 叫什么，桃什么 The Peachoid. 大桃子 It's a giant water tower in the shape of a peach. 那是一座桃子状的巨型水塔 I just googled it. The Peachoid. 我刚谷歌了，大桃子 She was 17, Linda.
纸牌屋第一季
What are you doing? 你在干什么 Working. On what? 工作，什么工作 The, uh, BRAC commission stuff. 军事基地整合委员会的事 I'm behind on it. 我落进度了 It's Sunday. 今天是周日 So? 所以呢 纸牌屋第一季.jpg You don'
纸牌屋第一季
1. It is one of natures great ironies that the availability of nitrogen in the soil frequently sets an upper limit on plant growth even though the plants leaves are bathed in a sea of nitrogen gas.(3+)下述情形真可谓是自然界的一个莫大讽
GRE英语
One in five people carry a 'smart gene' variant linked to long lifespan, bigger forebrains and enhanced mental ability, researchers have found. 研究人员发现，每五个人中就有一个人携带聪明基因变体，携带这种基因的人更长
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