细胞核

New Words 8A @ implication n. 1. [C] (usu. pl.) a possible effect or result 可能的影响(或后果) @ 2. [C, U] sth. that is suggested or not openly stated 含义;暗示 @ clone vt. make an exact copy of a plant or animal by taking a cell fr

发表于:2018-12-04 / 阅读(88) / 评论(0) 分类 新视野大学英语读写教程词汇 第三册

Identicals share one of the closest human relationships biologically. They are likely to grow up looking and sounding extremely similar, yet not a 100% match. A small number of genes in the mother's eggs sit outside the nucleus, known as mitochondria

发表于:2018-12-05 / 阅读(83) / 评论(0) 分类 国家地理2007年

I know that every cell in my body has a copy of my DNA packed into its nucleus. And I also know that if I could somehow unravel the DNA from a single cell, it would be about six feet long. So my question is, is DNA jammed into the nucleus in a sort o

发表于:2018-12-27 / 阅读(55) / 评论(0) 分类 英语时差8,16

模仿文本: That was a headline on September 5th, the end of the concept of junk DNA. Actually, geneticists had long abandoned the idea that our genomes are riven with all the rubbish. But what was once called junk was largely still unexplored. 译

发表于:2018-12-28 / 阅读(100) / 评论(0) 分类 英音模仿秀

Unit 8 Section (A) Legal and Moral Implications of Cloning At first it was just plain surprising. Word last week that a scientist named Ian Wilmut had succeededin cloning an adult mammal an achievement long thought impossible caught the imagination o

发表于:2018-12-29 / 阅读(127) / 评论(0) 分类 新视野大学英语读写教程(3)

《绝望主妇》原句: We have to get rid of the car. But we cant sell it. The police might find it, and there could be DNA. 单词词组讲解 Get rid of sth/somebody 摆脱 发音讲解 Get rid of 的t吞音,d连读 最后翻译: 我们必须把

发表于:2018-12-31 / 阅读(124) / 评论(0) 分类 小紫带你轻松学美剧

Dermatan sulphate - a glycosaminoglycan found in skin, tendon, blood vessel and heart valves. Desmosomes -one of the types of cell junctions by which cells join or communicate with each other. Desmoso

发表于:2019-01-03 / 阅读(107) / 评论(0) 分类 医务英语

Cemento-enamel junction- the junction between the enamel covering the crown of the tooth and the cementum covering its root. Often referred to as the CEJ. Cementoblasts - cells of mesenchyme origin, i

发表于:2019-01-03 / 阅读(69) / 评论(0) 分类 医务英语

Nerve growth factor- a cytokine that promotes the growth and repair of sensory nerves and maintenance of sympathetic nerves. Neural crest cells - cells derived from the ectoderm layer in the embryo. T

发表于:2019-01-03 / 阅读(69) / 评论(0) 分类 医务英语

Polymers-large molecules made up of many joined units of a more simple molecule. Examples are polysaccharides and polypeptides. Polypeptides; -chains of amino acids joined by peptide bonds. They are n

发表于:2019-01-03 / 阅读(105) / 评论(0) 分类 医务英语

Jackie: Welcome to BBC Learning English dot com and Insight Plus - a series first broadcast in 2001 that looks at the language of issues you hear about in the news. How far should science go to help the sick and the suffering? Today on Insight Plus,

发表于:2019-01-07 / 阅读(157) / 评论(0) 分类 英语讨论

If the human genome were put in a straight line, it would be over six and a half feet long. So how do you store all that DNA in a tiny nucleus? And have the cell manage it? Researchers explain how in a study featured on the cover of the October 9th i

发表于:2019-01-08 / 阅读(99) / 评论(0) 分类 Scientific American(十)月

HEALTH REPORT - New Embryonic Stem Cell Lines Developed for Researchers By Paul Thompson Broadcast: Wednesday, August 11, 2004 This is Gwen Outen with the VOA Special English Health Report. Researcher

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 健康与经济

SCIENCE IN THE NEWS - Progress Made in Stem Cell Research By Caty Weaver, Jerilyn Watson, ... Broadcast: Tuesday, May 31, 2005 (MUSIC) VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I

发表于:2019-01-09 / 阅读(97) / 评论(0) 分类 科技之光

Paintable Solar Cells May Replace Silicon-Based Devices 可喷涂太阳能电池可能取代硅基电池板 Solar panels are manufactured in factories. Some of the devices are made with cadmium chloride, a substance shown to be harmful to human healt

发表于:2019-01-12 / 阅读(109) / 评论(0) 分类 2015年VOA慢速英语(十)月

Dr. Richard Kao is part of the team that discovered a chemical compound called nucleozin thatt clumps together nucleoproteins from the flu virus, so they cannot get into a healthy cell's nucleus Researchers in Hong Kong have discovered a new way to s

发表于:2019-01-13 / 阅读(71) / 评论(0) 分类 VOA标准英语2010年(七)月

建筑设计师们像自然借鉴灵感的创意比比皆是,比如著名的悉尼歌剧院,比如北京奥运会的主场馆鸟巢。可是你想象过,自然界的有丝分裂能带给设计师什么灵感吗?可不是什么长得像DNA一样

发表于:2019-01-18 / 阅读(83) / 评论(0) 分类 名人演讲视频

Genome: Now in 3-D! In a study in the journal Science, researchers report the mapping of the three-dimensional structure of the human genome, and the finding that the cell's nucleus is divided into two regions, one where DNA goes to get expressed. Cy

发表于:2019-01-30 / 阅读(147) / 评论(0) 分类 60秒科学

So how can a hormone ultimately affect the rate of aging? 那么,激素到底是怎样影响衰老的速度呢? How could that work? 原理是什么呢? Well it turns out that in the daf-2 mutants, 原来在daf-2变异体中 a whole lot of gene

发表于:2019-02-14 / 阅读(102) / 评论(0) 分类 TED演讲科学篇

What's wrong with having three parents? I'm happy with two but maybe it would have been a case of the more the merrier. The role of parents is not only to give us love and guidance, but also to pass on genetic code. A few particular healthy genes wou

发表于:2019-02-21 / 阅读(61) / 评论(0) 分类 英语听力精选进阶版
学英语单词
acousto-optic transducer
air art
alkmuyne
anadrome side
anterior semilunar valve
argon-oxygen decarburization process
arrocha
azeotrope destroyer
B. M. A.
bald coot
barkevikite (ferro-hornblende)
Baynton's bandage
be abashed
befogs
bifunctional antibody
birgits
bleeding off
Bo Kheo
Bragg diffraction spectrograph
carbon-dioxide absorption anesthesia
carriage hoist
carry a torch for sb
cefazodone
chemical decay
chicken paprikas
co-operative society
Color.
coloradans
colour system
come arrive at an agreement
companionate marriage
contact bank
crinkliest
cumulative weight distribution
densation
designest
dichotomizer
die stand
disturbed boundary layer
double extension method
economic bloc
elite international paper
end-window counter
english cocker spaniels
esloined
fauquiers
foot volume control pedal
forlaboured
fundamental cut set
gate limiting device
grasps at
greenshaving
hydroxyl-
hymes
imbalm
inertial navigator
IORT
kandler
lead metal frame
low-zone tolerance
Lt. Inf.
magnification factor
make camp
middle leak-off point
mielie
negative pressure slider
Nikaho
oil color
Okazaki-type
ophiuridae
peridiastole
photochemiluminescence
physical plant configuration
physiological pollution
picture interpretation
plan of sampling
plasmasome
Pleurococcus
polyorchia
power castdown
Pyrex cooling jacket
quinazolidone
red-backed lemmings
sand edge
soddyite
stratosphere flight
streptose
stripping pins
Thanh Liem
third order servo problem
time cost trade-off
toadskin
tomnoddies
Transformers
transparency celluloid
undreamingly
upthrust fault-scarp
vacuum ingot melting
very high frequency omnidirectional range
vibrocardiogram
XPer
Zoophaginae