暂时性作用基因;在时空上控制构造、调节、操纵基因等作用的基因

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(77) / 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(80) / 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(70) / 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(89) / 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(73) / 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(104) / 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(80) / 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(52) / 评论(0) 分类 基因外遗传现象

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(59) / 评论(0) 分类 基因外遗传现象

The email was sent by Olov Bygren. He was studying the population records of an obscure town in northern Sweden, Overkalix. What made these records unique was their detail. They recorded births and de

发表于:2019-01-02 / 阅读(93) / 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(98) / 评论(0) 分类 基因外遗传现象

But could this effect be transmitted to their offspring? They found nearly 200 women of whom a number had actually been in the Twin Towers. About half of them developed post-traumatic stress disorder.

发表于:2019-01-02 / 阅读(89) / 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(86) / 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(79) / 评论(0) 分类 基因外遗传现象

The work of these scientists is at last throwing a spotlight onto the mysterious hidden world of epigenetics. They appear to show that the lives of our ancestors have a capacity to affect us directly.

发表于:2019-01-02 / 阅读(87) / 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(114) / 评论(0) 分类 英语杂谈

PEOPLE IN AMERICA - Barbara McClintock, 1902-1992: She Made Discoveries about Genes and Chromosomes CHRISTOPHER CRUISE: This is PEOPLE IN AMERICA in VOA Special English. Today, Jim Tedder and Shirley Griffith tell about Barbara McClintock. She was on

发表于:2019-01-12 / 阅读(81) / 评论(0) 分类 2012年VOA慢速英语(六)月

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(51) / 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(69) / 评论(0) 分类 2018年NPR美国国家公共电台1月

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(103) / 评论(0) 分类 英语新闻
学英语单词
additional combining
allocation of labour
almanc
Amerasia Basin
antistrikers
autoregulation voltage compensator
barge cargo
bath surface
be rusty
Camellia scariosisepala
carballoy
cercospora deightonii
cheating at common law
class B auxiliary power
comatic circle
contra-flow regenerator
cored hardening
cryptic satellite DNA
D meason
detective time constant
detotalization
dorsal plate
dripdry
dust settler
ectobatic
exterior stucco
fists
fouge
front power take-off
genus pholiotas
gouvernment
Gross-Hehlen
Hafnarfjall
hallams
healing sore and relieving pain
Hemptinne
high altitude air-traffic control
high pressure oil lifting device
houseshare
hydrostaticks
Igbira, Igbirra
in dictione
incidental science experience (ise)
industrial tube
industry title
it might
kurung
lateral wind bracing
le monde
light naphtha
loeweite
longitudinated
manned spacecraft system
Melloussa
monogeosyncline(Schuchert)
multi arch
Narcinidae
national service of legal metrology
nettech
neutron transport equation
newer
Palestinian Authority
partially occupied band
Parvularcula
passel
Physaliastrum heterophyllum
polar stratospheric vortex
Populus purdomii
portable processor unit
print information form
psych someone up
Pyracantha crenulata
red states
responsive time constant
revolutionary proletarian armies
roughing scale breaker
saltpond
scanning device
scheduled down-time
scissors kicks
scoliomete
seriflux
Sir Alfred Hitchcock
slip one's memory
sole licence
Spirillum tenue
SRLB
stone ball
striking proof
swda
syntonically
Takatshwaane
throughgang
Tigrinia
tipped cigarette
tri-services
udexes
Verdet constant
wire-rod mill
Yedogon
Yuzovka
zingibers