复基因

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(189) / 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(194) / 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(189) / 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(207) / 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(173) / 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(226) / 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(184) / 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(158) / 评论(0) 分类 基因外遗传现象

DNA Points to Multiple Migrations into the Americas 美洲多次殖民迁移之谜 For more than ten thousand years, Alaska Native and Canadian First Nations people have lived along the Northwest coast of North America. Now, ancient remains have prov

发表于:2018-12-24 / 阅读(199) / 评论(0) 分类 2017年Scientific American(六)月

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(219) / 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(185) / 评论(0) 分类 基因外遗传现象

It's certainly apparent to everyone whether you are a citizen of Japan or you reside in China that the emerging superpower here in Asia is absolutely China. And so..that given of the reason why weve heard Prime Minister Hatoyama mentioned multiple ti

发表于:2019-01-07 / 阅读(198) / 评论(0) 分类 cnn2009年(十一)月

Vicious weather in the southern plains. Two deadly tornadoes swirling in unison in southern Oklahoma. All of it caught on tape. There comes one right there. Look at them. They are all over. As you can hear, storm chasers were only reporters because i

发表于:2019-01-08 / 阅读(267) / 评论(0) 分类 CNN2010年(五)月

序号 中 文 英 文 术语解释 缩写 来源 41 OADM公共控制信道 ODAM Common Control Channel OCCCH 42 正交信道噪声仿真器 Orthogonal Channel Noise Simulator OCNS 43 操作员确定闭

发表于:2019-01-08 / 阅读(218) / 评论(0) 分类 电信英语

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(241) / 评论(0) 分类 英语杂谈

AS IT IS 2016-01-12 Starving Syrians to Receive UN Aid, Food 叙利亚饥民将获得联合国援助的食物 Fighting in Syria was paused to allow United Nations aid and food to reach the towns of Madaya, Foua and Kefraya. 在叙利亚的战斗暂时停

发表于:2019-01-12 / 阅读(195) / 评论(0) 分类 2016年VOA慢速英语(一)月

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(175) / 评论(0) 分类 2016年VOA慢速英语(六)月

British scientists have found a drug used to fight leukemia that appears to stop multiple sclerosis in its early stages and restore lost function to patients. Although still in the clinical trial phase, it is being called by some, the most promising

发表于:2019-01-13 / 阅读(213) / 评论(0) 分类 VOA标准英语2008年(十月)

日本富士通实验室的研究人员开发了一种无线充电系统,可同时给一定范围内的手机、数码相机及手提电脑等各种移动设备充电,无需使用电缆。该系统最早可于2012年正式推出使用。该系统被

发表于:2019-01-19 / 阅读(296) / 评论(0) 分类 阅读空间

By Anjana Pasricha New Delhi 28 April 2008 India has launched a record number of satellites into space in a single mission. The launch marks a milestone for the country's space program. Anjana Pasricha reports from New Delhi, India wants to emerge as

发表于:2019-01-31 / 阅读(241) / 评论(0) 分类 VOA常速英语2008年(四月)
学英语单词
a drill
ABVS
adansonia
augmention
azygos line veins
b-i-n-g-o
bite back
blended product
breathings-out
burning charge
calymperes japonicum besch.
carbon black tint strength
cast discredit on
collimear
comparamicroscope
counter plate
current signal indicator
day loan
deep expert system
dissentest
doctrination
drillship
ecm-carrying missile
Eggenburg
electric magnetic interference
Ellenborough
expense quota
exterrestrial biology
finality of verdict
flex crack
Fluibil
formale copper wire
frail
friction type rice milling machine
geologic compass
geomembrane seepage protection dam
great wheel friction spring
Heitersberg
high percentage
hot hobbing
illuminated disk
initial development
job plan
jockstraps
jumpness
known segment
lactonic
laminatus
lateral external iliac lymph nodes
leveins
liver starch
majorating
mammoth tanker
Mannerheim Line
Marine base
micro-order
Nasswald
neutron-flux detector
ninjaing
non-contact nuclear densimeter
nonconservative freezing method
nontransgendered
Nova-Carpine
optimum switching
orienteer
overdiscounts
paper-tape punch control unit
Paranam
pentoxide nitrogen
planetary-science
plug and slot welding
primary secondary clock
principal's mandate
progressive facial hemiatrophy
prysors
pulmonary cavitation
radius vetor
sarcopterygian
saving apparatus
second-order compressibility rule
secondary exception vector
share-purchase
singletool
sorocarp
spacecraft dynamics with flexible appendages
speech data compression
submarine rocket
sundown syndrome
switch code
ticket seller
tonsillotomy rash
topcloths
ummed
unfallowed
unstickiness
uranyl oxalate
urocrisia
user-written
vacuum gas oil
vital processor interlocking
wampumpeags
zero height of burst