[网络] 形态发生

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(172) / 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(176) / 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(176) / 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(190) / 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(160) / 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(214) / 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(169) / 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(146) / 评论(0) 分类 基因外遗传现象

An assistant at the morphing matter lab drops a few pieces of flat dry pasta into a pot of boiling water. In a few minutes, these rigid flat strips will turn into soft spiral shapes called fusilli that can hold a lot of tasty sauce. Packaging dry pas

发表于:2018-12-08 / 阅读(190) / 评论(0) 分类 VOA标准英语2018年(十月)

By Doug Levine Washington 30 April 2006 Donald Fagen likes to take his time. It took his group Steely Dan more than 20 years to tour, and it took the singer and keyboardist even longer to tour as a so

发表于:2018-12-16 / 阅读(238) / 评论(0) 分类 2006年VOA标准英语(四月)

Olov Bygren was looking to see if poor nutrition had an effect on health when he stumbled on something curious. It appeared that a famine could affect people almost 100 years later even if they never

发表于:2019-01-02 / 阅读(148) / 评论(0) 分类 基因外遗传现象

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(199) / 评论(0) 分类 基因外遗传现象

They discovered that when a famine was able to trigger an effect was different for the grandmother than the grandfather. The grandmother appeared susceptible while she herself was still in the womb, w

发表于:2019-01-02 / 阅读(178) / 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(169) / 评论(0) 分类 基因外遗传现象

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(219) / 评论(0) 分类 英语杂谈

DAVID GREENE, HOST: All right. So genetic tests can help you explore your heritage, but can your DNA also tell you what diet is best for you? NPR's Allison Aubrey asked that question. ALLISON AUBREY, BYLINE: If you're curious about personalized nutri

发表于:2019-01-16 / 阅读(137) / 评论(0) 分类 2018年NPR美国国家公共电台1月

RACHEL MARTIN, HOST: Chances are you have seen an ad for a test to find out about your ancestry. Maybe you got a kit for Christmas, and now you're waiting for your results. So what do you need to know when you open these results? Health editor Gisele

发表于:2019-01-16 / 阅读(164) / 评论(0) 分类 2018年NPR美国国家公共电台1月

Every year, TIME selects the best inventions that are making the world better, smarter andin some casesa little more fun. Here's which ones made this year's unranked list. 每年《时代》周刊都会选出让世界变得更美好、更智能或者更

发表于:2019-02-07 / 阅读(188) / 评论(0) 分类 英语新闻

And the powerful lobby group Manufacture Australia has chosen controversial former underwear Queen Sue Morphett as its new chairwoman. And she resigned last year as the Chief Executive of Pacific Brands where she axed 1,800 jobs and moved production

发表于:2019-02-14 / 阅读(180) / 评论(0) 分类 澳洲ABC新闻快递2013年

BEIJING, Aug. 5 (Xinhuanet) -- A study conducted by Israeli researchers at the Albert Einstein College of Medicine in New York shows that genes, rather than good eating and lifestyle habits, determine longevity, according to media reports Friday. Thi

发表于:2019-02-26 / 阅读(212) / 评论(0) 分类 英语新闻
学英语单词
a package deal
actinochemistry
Airi
anti-snaking strip
asch-
attenuation-frequency characteristic
barbarizes
betes noires
blowingly
boiler convection bank
breakpoint counting rate
bridal suite
BRL-2333
calvescent
Campines
Carallia longipes
Chrysosplenium fuscopuncticulosum
colombier
cressie
cross in circle
crosscurrents
Descending Channel
dimethoxyamfetamine
direct petrol injection
directional comparision relay
even the score
extra-ordinaries
fluxgate sensor
forced cooling cable
fore-footman
forest steppe zone
fortified rosin
fortuitously
fraction field
general osteosclerosis
Giano della Bella
heat transfer properties
hemicycle
house curtains
hydraulic control unit
hydroureterosis
identification letter
ill-shapeds
INCB
inclined projection
interdefinable
Jim Brown
kalgan series
kinematic(al) similarity
lateral lacunae
lattice array
launching time
life tenure
liquid-gas ejector
maneuver speed
Maneuverable Reentry Vehicle
manual data input
match sb against sb
maximum admitted diameter of work
methorphinan hydrobromide
methynolide
metric systems
narrowband fm
neoplasmocide
No power
o.s.
oblongus
occipital joint
OFFJT
open e-book forum
paper profits
patient's bill of rights
Pedicularis potaninii
pental
perflunafene
periperal scotoma
peshash
process gas chromatograph
Rabin
rambach
ramentiferous
rapyer
resemblant
Robertsonian fission
rooped
Salor, R.
scent bottle
selection with probability proportional to size
session of the peace
Shi'itism
short-term note
solidity coupled shaft
sunjectivism
surreptitia
taper ring-gauge
tarlatans
ten-bed
varnish black
verification of traces
White, Byron Raymond
wiping down