单基因杂种优势

By Nancy Steinbach Broadcast: October 1, 2003 This is Faith Lapidus with the VOA Special English Health Report. Scientists in Iceland say they have identified the first gene linked to common forms of

发表于:2018-12-15 / 阅读(136) / 评论(0) 分类 VOA2003(下)-环境与健康

《雨中曲:just singing in the rain》当电影情节进入有声片时代后,我们会看到眼花缭乱的舞蹈杂乱的交织,也许二十年代的人们就是用这种方式歌颂他们时代的伟大,而今天的我们亦对其不以为

发表于:2018-12-17 / 阅读(82) / 评论(0) 分类 中国传媒大学英语电台

Little girls are made of sugar and spice and, according to a study published in the journal Cell, a fierce determination to maintain their girlishness. Because it seems that a single gene keeps their ovaries from turning into testes. Scientists have

发表于:2018-12-24 / 阅读(116) / 评论(0) 分类 Scientific American(十二)月

Being single has its advantages and disadvantages. I think its better to stay single when youre young. You need to live and have fun. You also need the freedom to do what you want, when you want. Being single in your twenties gives you lots of time t

发表于:2018-12-26 / 阅读(118) / 评论(0) 分类 纯正英语一分钟

Science and Technology 科技 Peopling the Americas: Checkpoint 迁徙美洲:检查站 The first migrants to the new world had to wait 8000 years to be admitted. 新大陆的第一批移民在8000年后才被公认。 How America was originally col

发表于:2018-12-29 / 阅读(87) / 评论(0) 分类 经济学人科技系列

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 single [ 5siN^l ] She buys a single ne

发表于:2018-12-30 / 阅读(116) / 评论(0) 分类 每日攻克5词

And now a question we're all pondering: Whats on the mind of an unmarried man? Day to Day contributor Brian Unger is single, but even he doesnt have a clue, still he says the New York Times is searching for an answer. On Friday, gawker.com, a website

发表于:2019-01-08 / 阅读(224) / 评论(0) 分类 2005年NPR美国国家公共电台

Scientists Discover Gene Responsible for Multiple Sclerosis 科学家发现导致多发性硬化症基因 From VOA Learning English, this is the Health Lifestyle report. VOA英语学习健康与生活方式报道。 An estimated two million people ar

发表于:2019-01-12 / 阅读(114) / 评论(0) 分类 2016年VOA慢速英语(六)月

自花授粉 self-pollination 三系杂交稻 three-line method /CMS system 两系杂交稻 two-line method / PGMS and TGMS system 一系杂交稻 one-line method / apomixis system 杂种优势 heterosis 品种间杂交 intervarietal hybrids 亚种间杂

发表于:2019-01-17 / 阅读(128) / 评论(0) 分类 英文语法词汇

Gene Stops Ovaries from Testifying A mouse study in the journal Cell finds that a gene in females must remain active throughout her life to keep her ovaries from turning into testes. Karen Hopkin reports Little girls are made of sugar and spice and,

发表于:2019-01-30 / 阅读(252) / 评论(0) 分类 60秒科学

格莱美年度歌曲:Single Ladies 这首歌的MV一经发布就引发了全美对当中舞步的模仿热潮,在2009年MTV音乐录影带大奖上,《Single Ladies (Put A Ring On It)》一举拿下年度最佳录影带、最佳舞蹈设计、最

发表于:2019-01-31 / 阅读(142) / 评论(0) 分类 流行英文歌曲

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

发表于:2019-02-01 / 阅读(106) / 评论(0) 分类 阅读空间

今天我们要学的词是single out。 Single out, 是选出,挑出的意思。 He was singled out as the person who started the fight, 据说这场架是由他挑起的。 He claimed that he was singled out for criticism because of his race, 他声

发表于:2019-02-02 / 阅读(132) / 评论(0) 分类 英语每日一词

By Naomi Schwarz Dakar 12 October 2007 Experts say a single currency across West Africa could boost regional and international trade and increase stability across the region. West Africa's regional economic body, ECOWAS, has said it aims to create a

发表于:2019-02-03 / 阅读(138) / 评论(0) 分类 2007年VOA常速英语(十月)

BEIJING, August 1 (Xinhuanet) -- U.S. researchers have discovered a genetic mutation unique to African Americans that links to heighten their asthma risk, according to reports published on Sunday in the journal Nature Genetics. Researchers of Univers

发表于:2019-02-06 / 阅读(153) / 评论(0) 分类 英语新闻

Single Girls Laura Jansen I think you'd like my new hair I cut it when you weren't there that pieces of us everywhere were falling down My bed is now a girl's bed Pink flowers under my head and pillows on your side instead of you Cause that's what si

发表于:2019-02-08 / 阅读(146) / 评论(0) 分类 好听的英文歌曲

音乐咖啡厅:Laura Jansen - Single girls 相关介绍:很显然对这些铺天盖地的独立音乐已经没什么好评论的了,不过这种欢快的调调真是百听不厌。这妮子在myspace上人气还满高的,非小清新系的甜美

发表于:2019-02-08 / 阅读(205) / 评论(0) 分类 音乐咖啡厅

Why? Why? is a question that parents ask me all the time. Why did my child develop autism? As a pediatrician, as a geneticist, as a researcher, we try and address that question. But autism is not a single condition. It's actually a spectrum of disord

发表于:2019-02-16 / 阅读(110) / 评论(0) 分类 英语语言学习

With this ability to evolve rapidly goes another, even scarier advantage. 有了这种能力,另一种更加吓人的优势会很快产生。 Bacteria share information. Any bacterium can take pieces of genetic coding from any other. 细菌能共享信

发表于:2019-02-17 / 阅读(79) / 评论(0) 分类 万物简史

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

发表于:2019-03-05 / 阅读(157) / 评论(0) 分类 留美老师带你每日说英文
学英语单词
Aderbissinat
alsaces
aluminium armature
ambers
aorto-coronary radial artery bypass grafting
at one's own charge
Ausa-Corno
autotransfusions
awre
ballometer
bet'z law
blanket with ambient temperature compensation
body-slam
charcoal revivifyig plant
cheilosis
closure problem
command periscope
cooperating teacher
crasulaceae
cries out for
cuspate-arcuate delta
DC voltage transformer
Debye-Scherrer ring
Dictionary of Chinese Pharmacy
diesel direct injection engine
drag the sea
drug safety
efflux angles
effusol
ellipsoids of revolution
emergency shutdown system
encephalotrigeminal syndrome
entrepreneuse
error control coding
eyelashes
facade of neutrality
flix
Fränkische Saale
fuck puppet
full-frequency recording range
galvanonervous
genus Lepidocybium
gilibertia hainanensis merr. et chun
goes ham
goods sold over the counter
Grave, Pte.de
heimin
Hungarian language
in the bucks
international federation of stock exchange
iron iodate
knob gobbler
leopardine
limiting dimension
lipsies
mercy rule
mesocaryon
microsegmentation
musty smell
Naranjo, B.de
Njegos
nonseeing
Okazaki-type
One's mantle falls on sb.
open guide
p-aminomethylbenzoic acid
primary metamorphosis
propanedithiol
pulley motor
pulls those off
quaternary digital group
reargument
redstart
relcovaptan
residual waiting time
revolving ash pan
Rhamnus carolinianus
Rubus delavayi
shore hardness a
sibias
sinomicrurus hatori
sklerospathit (sclerospathite)
slossitis areata exfoliativa
spiral riveted pipe
standardized deviate
stevans
table locking clamp
takeing-off forecast
technical economics of environmental protection
terpenol phosphate
text-blindness
the turners
three-channel
topagnosis
tozeurs
transport hoverplatform
tutto
tyrannidaes
vibrating decorer
visitants
yoke-footed