VOA慢速英语--新发现的骨骼显示古人类的基因组合

Newly Discovered Bones Show Genetic Mix of Ancient Human Relatives Scientists say they have discovered the remains of an ancient female whose mother was a Neanderthal and whose father was Denisovan. Neanderthals and Denisovans are early human species

美文欣赏：幸福的公式很简单基因 事件和价值

HAPPINESS has traditionally been considered an elusive and evanescent thing. To some, even trying to achieve it is an exercise in futility. It has been said that happiness is as a butterfly which, when pursued, is always beyond our grasp, but which i

SSS 2012-06-28

For many people summer equals tomatoes. Thats when folks can get their hands on gorgeous heirloom and traditional varieties, full of tomatoey flavor. Such tomatoes provide a stark contrast to year-round supermarket ones, famous for tasting like, well

美国英语听力80篇3 Lesson54

[00:04.91]54) Anti-sense Technology [00:10.55]Research scientists have reported success in using an experimental method [00:17.97]called anti-sense technology to treat people with cancer. [00:23.41]For years, researchers have tested anti-sense techno

异类之不一样的成功启示录 第7期:序言(7)

I remember going to Roseto for the first time, and you'd see three-generational family meals, all the bakeries, 我记得第一次来到罗赛托的时候，看到祖孙三代一起用餐, 看到很多面包师； the people walking up and down the s

TED演讲:个体DNA检测的时代来了(6)

A 16-year-old girl, a high school student from New York, Anna-Sophia Boguraev, 一个16岁的女孩，一个来自纽约的高中生，Anna-Sophia Boguraev， wondered whether changes to the DNA of astronauts could be related to this immune suppressi

TED演讲:论生物多样性(3)

We are living on a planet with a lot of activities, with reference to our living environment,done by faith and guess alone. 我们对于这个地球上所发生的许多现象,都只是通过信念或猜测来认知。 Our lives depend upon these cre

安琪拉·贝尔彻:用自然来培育电池

受到鲍鱼壳的启发，安琪拉贝尔彻用病毒来制造人类能使用的优雅的纳米结构。通过定向进化挑选出高性能基因，她生产出一种病毒，这种病毒能构筑强大的新的电池、清洁的氢燃料和破纪录

SSS 2009-07-03

This is Scientific American's 60-second Science. I'm Christie Nicholson. Got a minute? We might think perfect pitch is an innate talent. Well, a study in the American Journal of Human Genetics is providing some evidence for that. Perfect pitch, aka a

SSS 2010-08-06

One of the concerns about working with genetically modified crops has been that vegetation growing in agricultural fields might escape out into the world. Now, for the first time in the U.S., researchers report a large population of GM crops beyond t

SSS 2012-05-04

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

SSS 2012-05-03

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

与美国小学生一起学英文第12册 第7期:突变

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

为防癌变 朱莉切除卵巢和输卵管

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

VOA慢速英语 2007 1017a

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

神探夏洛克第二季第二集_19

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

GRE阅读考试难句训练法（上）

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

OMG成都女孩47岁老爸年轻似男友

Web user sysev7n was cleaning out her fathers photographs at their home in Chengdu when she spotted the old snaps. Compared to a series of photos taken on a recent family holiday, the woman noticed that her parents looked like they haven't aged a day

以蚊攻蚊：千万转基因蚊子即将释放野外

提起蚊子的天敌，我们第一时间想到的是蚊香，但是现在科学家有了更好的办法：以蚊攻蚊，让带有基因缺陷的转基因蚊子去对付它的自然同伴，最后让蚊虫家族自行灭绝。这种转基因雄性蚊

经济学人:熊猫遗传学:熊猫的远亲是谁?(2)

And most curiously of all, both have a sixth digit on their forepawsa kind of ancillarythumb derived from one of the bones of the wrist that helps them hold bamboo stalks for consumption. 最令人惊奇的是，它们的前爪上都长有第六指，是