胚发生培养

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(278) / 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(261) / 评论(0) 分类 VOA慢速英语2008年(一)月

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(275) / 评论(0) 分类 万花筒2006年

This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 Scientists have worked for twelve years to develop what they call Green Super Rice. They say several varieties should be available to farmers about t

发表于:2018-12-16 / 阅读(297) / 评论(0) 分类 2011年VOA慢速英语(二)月

'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(248) / 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(304) / 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(270) / 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(229) / 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(356) / 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(292) / 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(310) / 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(249) / 评论(0) 分类 VOA慢速英语2007年(一)月

This is the VOA Special English Agriculture Report. Dominette, a Hereford cow whose genetic material was used in the study Researchers from twenty-five countries have made a genetic map of a cow. Better understanding of what makes a cow a cow could

发表于:2019-01-11 / 阅读(366) / 评论(0) 分类 VOA慢速英语2009年(五)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(345) / 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(271) / 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(514) / 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(353) / 评论(0) 分类 英伦广角

Agriculture Report - Tomato's Genetic Secrets Are Peeled Away This is the VOA Special English Agriculture Report. Scientists have made a genetic map of the tomato. Tomatoes are second only to potatoes as the world's most valuable vegetable crop. Eigh

发表于:2019-02-08 / 阅读(320) / 评论(0) 分类 2012年VOA慢速英语(七)月

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(277) / 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(242) / 评论(0) 分类 经济学人综合
学英语单词
ad hoc observer
added in
adjoint process for stochastic network
antiredevelopment
as planned
automatic feed water control
avaunted
backstage deal
bacteria counting apparatus
Bekdorf
belt road
Berlin greens
bipolar memory device
Blackwell,Elizabeth
blue rebber bleb nevus syndrome
brachysporium syntherismae
broken case
bryocoris (cobalorrhynchus) flaviceps
chilliest
circular wait
Coleraine
common camellia ?
computation and design division
corticospinal tract
data in
dauberts
dear diary
defogger
Desolation Pt.
dianabol
dicyclohexyl
dipsetic
divi-divis
domestic telegrams
double beam crane
electrolyses
ethmoiditis
for one's years
Forest-science
geometry of ore body
gift loan
hall gaussmeter
harness pony
hemabarometer
inter row cultivator
inturnement
Iroslav
island reef navigation
isochronous creep curve
ixohymeniderm
lateral feed
lexicostatistics
logical action
long range navigation loran
low-light-level imaging
Lymexylonidae
markednesses
model-based vision system
moisture-proof case
movable carbon rod
muchhead
myrmeco-
Neurin
non-states
optimal performance
out-expander
Panlingon
parent rock
photonuclear fission
polarography
prenex-normal form
prenominals
price remain stable
re-marriage
re-served
reach an accord
Reaganites
register differences
repel the oil
repetitive measurement
reproducing lathe
retore
Rhinantin
sainfoin
sand bond
satellite area-mass ratio
saturated Carnot vapor cycle
savaiano
separately heated cathode
skive
sour cucumber
standard parlimentary candle
Tokaris
transceive
type C conditioning C
uneven seam
uniform polymer
weddell seals
well-maintaineds
West Manchester
wind-hold
Zolotaya osen