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(203) / 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(203) / 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(194) / 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(212) / 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(180) / 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(231) / 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(189) / 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(163) / 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(202) / 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(239) / 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(235) / 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(192) / 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(231) / 评论(0) 分类 科技之光

Paul Simon's new album

发表于:2019-01-09 / 阅读(273) / 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(330) / 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(261) / 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(252) / 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(315) / 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(246) / 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(217) / 评论(0) 分类 英语单词荟萃
学英语单词
accounts payable account
acetylpolyamine
Acontius
adnominalization
aethylenum
aft steering test
ailor
an article of faith
ase source
autodesks
Bahrainis
balaenopteras
be within sb.'s discretion
biocomps
bonding machine
bottom web longitudinal
bow-shaped
Brinsworth
cafers
coffee-makings
cryoultramicrotome
damping characteristics
Deseresept
disruptive voltage
dr. seusses
drift meter
DW system demineralized water system
ectophloeodal
effects of thermal pollution
emergency use
epithelial glands
Eusebians
Fat Nigrosine B
final value property
float measurement
flow process chart
Frenchifications
German Autumn
get up to monkey tricks
glaucoma-cyclitic crisis syndrome
GlaxoSmithKline
gravelweeds
gray's
hannabel
Happy Christmas
hav
heterostylic
hydraulic shifter unit
ichabod
inorganic acid radical
integrated power supply
juncus balticus willd.var. japonicus f.buch.
Lièvre, Rivière du
maxillary glands
Mittelmeyer's tests
Nyamwage
occipitofrontalis
palmster
pendant
picture format
press heater
psuedo-periodicity
puccinia scirpi-ternatani
pyramoids
risk coefficient
roquefort dressings
s.t.i.r.
Sandemanian
scale representation
Scalp Mountain
secondary research
self-sabotaging
Senoi
seralbumin
series mode interference
shape primitive
simulation efficiency
sleeper holding measuring device
slenting
slushiness
springingly
standard for evaluation
subaural
substantive variation
supersonic biology
tetrahydroxycholane
The Piazza of S.Mark
thermoelectrical inversion
thrill seeker
toraya
Trillick
tu quoque
type of focus
UEFA Cup
ultrasonic atomizing inhalation
unmodulated noise
utility bond
vena renalis
vsm power supply
wnning bowline
worm distributor
wurras