胚胎发生阶段

世界首批试管狗宝宝成功诞生 Scientists at Cornell University have proudly presented the first litter of dogs successfully born through in vitro fertilization, or IVF. The breakthrough may help in combating inherited diseases that affect c

发表于:2018-12-02 / 阅读(106) / 评论(0) 分类 VOA双语新闻 2015年12月

SCIENCE IN THE NEWS -January 8, 2002: Top stories of 2001 By Nancy Steinbach VOICE ONE: This is Bob Doughty. VOICE TWO: And this is Doug Johnson with the Special English program SCIENCE IN THE NEWS. T

发表于:2018-12-07 / 阅读(88) / 评论(0) 分类 科技之光

This is the VOA Special English Agriculture Report. Cloned dairy cows at a farm in Maryland The United States government has decided that food from cloned cattle, pigs and goats is safe to eat. The Food and Drug Administration also says it found no

发表于:2018-12-07 / 阅读(78) / 评论(0) 分类 VOA慢速英语2008年(一)月

1918 Flu's Genetic Code May Help Fight Bird Flu 1918年的流感病毒基因源代码可能帮助人类抗击禽流感 It was the 20th century's greatest plague . Estimates of the 1918-1919 flu death

发表于:2018-12-08 / 阅读(211) / 评论(0) 分类 VOA2005(下)--环境科学探索

Imagine being able to override Mother Nature and hand-pick the physical appearance and intellectual traits of your unborn child. Well, thanks to modern science, what may seem far-fetched now could be

发表于:2018-12-11 / 阅读(82) / 评论(0) 分类 万花筒2006年

'Three-Person Babies' Debate Goes Beyond Science and Religion 三人创造的人类胚胎辩论超越科学和宗教 Britain has become the first country to permit doctors to use genetic material from three people to create human embryos. The process

发表于:2018-12-16 / 阅读(70) / 评论(0) 分类 2015年VOA慢速英语(三)月

Section (C) Twins Six Years Apart Scientists in Scotland recently announced that, for the first time, they have cloned an exact copy ofan adult mammal. The cloned lamb, named Dolly, has the exact same genes as the adult sheep fromwhich she was cloned

发表于:2018-12-29 / 阅读(107) / 评论(0) 分类 新视野大学英语读写教程(3)

Can Babies Be Designed? We hear a lot nowadays about designer babies. The idea that parents can choose the genes of their children sounds frightening. The question we have to answer is: how much can w

发表于:2018-12-30 / 阅读(84) / 评论(0) 分类 英语沙龙2004全年合辑上

HEALTH REPORT - Scientists Develop Stem Cells Without Loss of EmbryosBy Caty Weaver Broadcast: Wednesday, August 30, 2006 This is the VOA Special English Health Report. Researchers say they have found

发表于:2019-01-02 / 阅读(78) / 评论(0) 分类 2006年慢速英语(八)月

HEALTH REPORT - Gene Therapy Used to Treat Cancer | Stem Cell Study Leads to Criticism, QuestionsBy VOA Staffs Broadcast: Wednesday, September 06, 2006 This is the VOA Special English Health Report. A

发表于:2019-01-02 / 阅读(108) / 评论(0) 分类 2006年慢速英语(九)月

Scientists in Oregon successfully fixed a disease-carrying gene in human embryos. It was the first time this has been done. This small effort could be a big step in preventing inherited, or gene-related diseases. A research team at Oregon Health Scie

发表于:2019-01-02 / 阅读(88) / 评论(0) 分类 2017年VOA慢速英语(八)月

If the human genome is the book of life, then Crispr technology is its Microsoft Word. The cut-and-paste technique, invented only three years ago, can be used on fledgling genomes to snip out bits of DNA and, if required, insert new stretches. 如果说

发表于:2019-01-08 / 阅读(92) / 评论(0) 分类 英语新闻

This is the VOA Special English Agriculture Report. The United States government wants to know what the public thinks about its findings on the safety of cloned animals. Cloned dairy cows Cyagra, left, and Genesis at a farm in Maryland The Food and D

发表于:2019-01-11 / 阅读(73) / 评论(0) 分类 VOA慢速英语2007年(一)月

AS IT IS 2014-10-13 Thailand Seeks to Ban Commercial Surrogacy 泰国试图禁止商业代孕 Thailand is campaigning against commercial surrogacy, one of the worlds most unregulated industries. In this industry, infertile foreign couples pay Thai wo

发表于:2019-01-12 / 阅读(168) / 评论(0) 分类 2014年VOA慢速英语(十)月

By Tom Rivers London 19 May 2008 British lawmakers voted Monday to allow the use of animal-human hybrid embryos in stem cell research. These new embryos will be created in labs injecting empty animal eggs with human genetic material. For VOA, Tom Riv

发表于:2019-01-13 / 阅读(90) / 评论(0) 分类 VOA标准英语2008年(五月)

AUDIE CORNISH, HOST: What if scientists could genetically modify mosquitoes to wipe out a disease that kills hundreds of thousands of people each year? They're trying to do that with a new genetic engineering technique. They hope it will help them fi

发表于:2019-01-16 / 阅读(100) / 评论(0) 分类 2016年NPR美国国家公共电台12月

Now have you sinned since our last broadcast? The Catholic church is worried people aren't taking sins seriously enough. So the Vatican has decided to update its list of the seven deadly sins. But whereas the focus of the traditional sins--LUST, GREE

发表于:2019-01-30 / 阅读(172) / 评论(0) 分类 英伦广角

26 茎细胞对于疾病治疗的神奇功效 DATE=5-24-01 TITLE=SCIENCE REPORT - Progress in Stem Cell Research BYLINE=Caty Weaver (Start at 59

发表于:2019-01-30 / 阅读(219) / 评论(0) 分类 自然探索

Science and technology 科学技术 Cell biology 细胞生物学 On your marks... 各就各位 The first cell race in history may further knowledge about how cancers spread 历史上的首次细胞赛跑,可能增进了解有关癌症如何扩散的知

发表于:2019-02-16 / 阅读(79) / 评论(0) 分类 经济学人科技系列

Leaders 社论 Gene editing 基因编辑 The baby crisperer 婴儿保险盒 A Chinese scientist claims to have edited the genomes of two babies 中国科学家声称已成功编辑两名婴儿的基因 Humanity's power to control the four-letter code

发表于:2019-02-25 / 阅读(88) / 评论(0) 分类 经济学人综合
学英语单词
'Ali Sabīh Dist.
.drw
Aateck
ahd
American Institute of Marine Underwriters
Ampelocalamus
anti feudalism
arch-see
assimilative capacicy
Baltimore oriole
barfed
beating in
cam and ratchet drive
chamber concerto
charge coupled detector
circumference of wheel
conditional branch
conical motion
constant principle of seawater major component
contraction pressure loss
crime of blackmail in general
cross reference number
deficient cold of bladder
desking
editorial policy
El Asiento
Endophenolphthalein
ensorcellments
Evert, Chris
family Papilionacea
finishing mill
flip flop device
forest grower
hasso
hewhall
high-speed powderless etching machine
hiking trail
hunch forward
Hylenta
iris-
isoanomaly line
isopropylhexedrine
joyner
judicial question
knit coat
Kuz'minka
leewards
logist
low dimensional magnet
Lundstedt
Mahammid
marginal firm
medar
megalomanic
meta-perspective
minor groove
nachmen
ncesu
nebulation
niobium(element)
no man is an island
nonunionist
normal spaces
Oligotrichida
operculiform
outward port charges
passaree boom
Perrinia
photoelectric position detector
photonic material
polymer characterization
primary function symbol
procuratorates
production per well
put paid to sth
quasi-language
rayleigh roughness criterion
rhaegmageny
rustle up something
sample size code letter
scale of notation
Scat.
secalintoxin
seminal vesicle examination
sparnacian
subhumen
subscript range
surplus variables
survey accuracy
syringa pinetorum w.w.smith
theoretical yield
Ticha, Yazovir
time indicating mechanism
tlacoyo
to lock
traditional artcraft
trophoblast
twelvish
uranyl nitrate
Uruguayan
Vulcan Phalanx
WUSL