金尼西〔晚泥盆纪〕

Marcus Pembrey is one of a select band of scientists, a band of scientists who are daring to challenge an orthodoxy . They believe the lives of our parents, grandparents, and even our great grandparen

发表于:2018-12-07 / 阅读(67) / 评论(0) 分类 基因外遗传现象

No body had had seen this kind of thing before, so this was the first time and all the people looking at the gel and saying

发表于:2018-12-07 / 阅读(70) / 评论(0) 分类 基因外遗传现象

After we had seen how relatively easy it was to change the switches in mouse embryos, we thought that perhaps the same could be true of human embryos. In IVF, you also have the embryo for a brief peri

发表于:2018-12-07 / 阅读(66) / 评论(0) 分类 基因外遗传现象

If inheritance was not just about DNA, if these gene switches were so important, just what could turn them on or off? Stephanie and Emend Mullins have two children, Karen and Charlotte. When we were t

发表于:2018-12-07 / 阅读(78) / 评论(0) 分类 基因外遗传现象

It showed that there was clearly more to inheritance than simply the coded sequence of DNA. We then realized that we were dealing with what is now known as genomic imprinting. What genomic imprinting

发表于:2018-12-07 / 阅读(62) / 评论(0) 分类 基因外遗传现象

...lead to the end of diseases like cancer... Alzheimer's , Parkinson's , diabetes. The list is endless. We were thinking of genes in a very mechanical way. We were thinking of them just in terms of t

发表于:2018-12-07 / 阅读(91) / 评论(0) 分类 基因外遗传现象

Named after Henry Angelman, the pediatrician who first described Angelman syndrome. He referred to them as happy puppet children because it described, to some extent, the features. They have a rather

发表于:2018-12-07 / 阅读(68) / 评论(0) 分类 基因外遗传现象

We are on the brink of uncovering a hidden world, a world that connects past and future generations in ways we never imagined possible. What this means is an environmental exposure that your grandmoth

发表于:2018-12-07 / 阅读(45) / 评论(0) 分类 基因外遗传现象

Parasites, Trauma Causes of Epilepsy A new study said its possible to substantially reduce the number of epilepsy cases in Africa. The neurological disorder, which is characterized by seizures, is much more common in poor countries and rural areas. T

发表于:2018-12-08 / 阅读(70) / 评论(0) 分类 VOA标准英语2013年(一月)

avulse, vt (由于意外事故或通过外科手术)把(身体的一部分)撕脱;抽出 【反】link(vt 连结);suture(vt 缝合)

发表于:2018-12-30 / 阅读(99) / 评论(0) 分类 不择手段背单词

Our studies had really convinced me that it were the later experiences of the child as the child was growing up bombarded with years and years of, em, symptoms from the parents that accounted for the

发表于:2019-01-02 / 阅读(93) / 评论(0) 分类 基因外遗传现象

The impact of a famine being captured by the genes in the eggs and sperm, and a memory of this event was being carried forward to affect the grandchildren, generations later. We are changing the view

发表于:2019-01-02 / 阅读(74) / 评论(0) 分类 基因外遗传现象

SCIENCE IN THE NEWS -July 2, 2002: Space Shuttle Flights Halted / Researchers Study Icelanders' Genes / Another Reason to Eat Green, Leafy Vegetables Broadcast: July 2, 2002 VOICE ONE: This is Steve E

发表于:2019-01-07 / 阅读(83) / 评论(0) 分类 科技之光

Paul Simon's new album

发表于:2019-01-09 / 阅读(140) / 评论(0) 分类 2006年VOA标准英语(六月)

UNIT TWO My favourite season [00:09.22]Let's chant [00:11.60]Sprig is green with flowers and songs. [00:22.99]Summer is hot and thedays are long. [00:30.69]Fall is golden and farmers are busy. [00:38.27]Winter is white and the year is gone. [00:45.17

发表于:2019-01-09 / 阅读(184) / 评论(0) 分类 人教版小学英语五年级

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(107) / 评论(0) 分类 英语杂谈

By Challiss McDonough Cairo 11 January 2008 U.S. President George W. Bush is in Kuwait, the next stop on his visit to the Middle East. He spent three days in Israel and the Palestinian territories, trying to advance the peace process. His secretary o

发表于:2019-01-13 / 阅读(97) / 评论(0) 分类 VOA标准英语2008年(一月)

By Alan Silverman Hollywood 08 October 2006 Jack Nicholson stars as Frank Costello, the ruthless boss of an underground criminal empire in Southy, the working class neighborhood on the south side of Boston. Law enforcement agencies have been trying

发表于:2019-01-19 / 阅读(179) / 评论(0) 分类 2006年VOA标准英语(十月)

The Bierborse is an open-air event devoted to the art of brewing throughout the world. It is composed of two thirds beer-serving businesses and one third accompanying snack specialities. The range is supplemented by participants offering products typ

发表于:2019-02-03 / 阅读(112) / 评论(0) 分类 阅读空间

今天我们要学的词是 per se. Per se是自身,本身的意思。Google claims that Google+ is not a social media per se. 谷歌声称,Google+ 并非完全意义上的社交媒体。Web bloggers are not journalists per se. 网络博主们并非

发表于:2019-02-18 / 阅读(96) / 评论(0) 分类 英语单词荟萃
学英语单词
a favourite son
a new one
a pile of shot
aben
activity area
aorto-coronary bypass grafting
art of computation
artemisia capillaris
Bacterium cyprinicida
bargain on the spot
Barnes extended hypergeometric function
base support
battle through
beknaving
Benedict,Saint
Biankouma, Dép.de
bilprotein
capitals of paraguay
catch the President's eye
deadzone
deep penetrating electrode
distributing valve body
essential hazard
eternalize
ethernet network
evershed
extractum saccharomycitis solubile
factor
family ailuropodidaes
family membracidaes
fell short
flushed with success
free list
genus aepyceross
gravity-free
Great Lakes
Homalium cochinchinense
horse of a different color
Inderapura
interest on arrears
internal respiration
intertrigation
isotope broadening
jizzax viloyati (dzhizak oblast)
Kemsley
Liparis delicatula
lofting office
lotsatech
means antihunt means
Megacles
moderate energy
moorishly
mulberry geometrid
muralis
niccing
niggertown
nozzle dam
obesity drug
oridio
orobanin
OSUK
Palmeira
parachute section
particle-hole model
patentometrics
phenyl-acetone
photonitrosation
piston actuated valve
plantago virginicas
polyodont
private system
pseudoscutum
Ptyas mucosus
pyrovinic acid
quinquevalve
randomized program test
retrofire time
rotary vacuam filter
RTL
saddlefast
Sakharov, Andrei Dimitrievich
sand equilibrium bank height
satellite re-entry guidance
sector gate
seismic detector of the displacement
signal of communication
Silver Star(Medal)
single roller
slit-film fibre
specific delivery
staff policy
statefinders
Suffolk Coastal
surveillance visit
tribosphenic molar pattern
twin beam oscilloscope
ultra-sonic dehydration
unswearing
Veksa
wynnewood
ylate emulsion
zits