标签：mutation 相关文章
SCIENCE IN THE NEWS - Epilepsy Disorder Suffered By Millions Around the World From VOA Learning English, this is SCIENCE IN THE NEWS in Special English. I'm Shirley Griffith. And I'm Bob Doughty. Today we will tell about the brain disorder known as e
2012年VOA慢速英语(十二)月
by Mignon Fogarty Today's topic is active voice versus passive voice. The podcast edition of this article was sponsored by GoToMeeting. With this meeting service, you can hold your meetings over the Internet and give presentations, product demos and
英语语法 Grammar Girl
This is the VOA Special English Health Report. The next time you think about going without sleep, consider this: Laboratory animals that are kept awake for long periods of time ... die. Yet sleep scientist Ying-Hui Fu at the University of California
VOA慢速英语2009年（八）月
Angelina Jolie Has Second Surgery to Prevent Cancer 安吉丽娜朱莉进行第二次手术预防癌症 Hollywood actress and filmmaker Angelina Jolie told the world this week that she had had another operation to reduce her chance of getting cancer.
2015年VOA慢速英语(三)月
Gene Therapy Halts Vision Loss in Dogs Researchers have stopped vision decline in dogs with an inherited disease that causes blindness. The gene therapy technique they used may someday stop vision loss in humans. Retinitis pigmentosa (RP) is an eye d
VOA标准英语2012年(二月)
Health authorities on Taiwan say they're looking into 42 suspected human infections of the H7N9 bird flu. However, no cases have yet been confirmed on the island. Doctor Pei Chun-Zhan is with the Taiwan Center for Disease Control. The virus cannot tr
英闻天下
Researchers say the H7N9 virus is a genetic reassortment of viruses carried by migratory birds from South Korea, other East Asian regions, and chickens from east China. The mingle of the viruses is likely to have occurred in east China's Yangtze Rive
英闻天下
Most of us have had the same experience. We see a big, red tomato in the grocery store, take it home for our salad, and find out that it tastes like cardboard. 大多数人都有过这样的经历，从商店里挑选出又大又红的番茄回去做沙
初学者听力文摘精选
Darwin Under Attack In US Science Classroom 美国自然科学课堂抨击达尔文进化论 The USconstitution guarantees separation of church and state. This means among other things that religious
VOA2005（上）--环境科学探索
Morphogenesis - the process in which tissue shapes and organ structures are developed during embryology. Morphogenic fieled - an environment in which the shape or pattern of a developing organ is dete
医务英语
SCIENCE IN THE NEWS - September 17, 2002: Ginkgo as Memory Aid Disputed / New Findings About Deadly Skin Cancer / Hair and Sex Lives of Lions VOICE ONE: This is Sarah Long. VOICE TWO: And this is Stev
科技之光
1. Attorney General, Eric Holder says he is ordering a justice department investigation into the IRS targeting conservative groups for extra tax scrutiny. The FBI will see if any laws were broken. 2. But Holder says he had no direct role in the justi
美联社新闻一分钟2013(五月)
By Carol Pearson Washington 14 January 2008 For years autism has baffled researchers and devastated families. Autism typically appears in the first three years of life. Symptoms include problems with communication, difficulty forming relationships an
VOA标准英语2008年（一月）
Doctors Say Not All Women with Jolie Condition Need Preventive Mastectomies She's beautiful, glamorous, and known for being outspoken whether it's about refugees or women's rights. Angelina Jolie's decision to have both breasts surgically removed whe
VOA标准英语2013年(五月)
DAVID GREENE, HOST: Cancer patients are increasingly having the DNA of their tumors analyzed in a quest for better treatment. This is a prime example of what's known as precision medicine. That's where medical decisions are driven by data. NPR health
2018年NPR美国国家公共电台1月
RACHEL MARTIN, HOST: Now to China, where a strain of bird flu has killed a record number of people this year. Scientists on the frontlines of this deadly strain are more worried than ever about its potential to spur a global pandemic. NPR's Rob Schmi
2017年NPR美国国家公共电台4月
Neandertals Live On in Our Genomes也许你身上存有尼安德特人的基因 Fifty thousand years ago, Homo sapiens weren't the only game in town. We were just one of several species of hominids roaming the Earth, like the Neandertals in Eurasia.
2017年Scientific American(六)月
High-Tech Device Reduces Risk of Hospital Infections This machine fires bursts of ultraviolet, or UV, light that penetrate the cells of micro-organisms and kill them. The organisms have no chance to adapt and gain immunity as they might with a chemic
VOA标准英语2012年(二月)
今天我们要学的词是 prone. Prone 形容词，更易于，更倾向于。A study finds that frequent drivers and those with neurotic and extroverted personalities are more prone to distraction while driving. 一项研究发现，经常开车的人
英语单词荟萃
台湾籍旅美老师今天交给我们的句子是： When studying these fruit fly brains, scientists identified one single gene that, when mutated, rendered a female completely incapable of deciding on a mate - even when a male is trying really ha
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