先成的染色体组

Pronouns Male: OK, you got your verbs, you got your nouns, and you got your pronouns. Then there are your 1) modifiers like your adjectives, adverbs and prepositions. Female: This half-hour, we’ll d

发表于:2018-11-28 / 阅读(240) / 评论(0) 分类 疯狂英语2002年

News Spotlight (4) News 1: 政治 In Canada, Quebec's pro-independence party has suffered a 1) setback. Partial results show the Party Quebecois has lost its bid for a third straight term in the 125-m

发表于:2018-11-28 / 阅读(294) / 评论(0) 分类 疯狂英语2003年

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Its the time of year to take a look backand thats just what the journal Science did as they listed their most important breakthroughs of 2008. At the v

发表于:2018-12-02 / 阅读(207) / 评论(0) 分类 Scientific American(十二)月

Mummies Contain Clues to Colon Cancer 木乃伊包含了结肠癌的线索 From VOA Learning English, this is the Health and Lifestyle report. Colon cancer is linked with obesity, lack of exercise, and a poor diet high in processed foods. However, sc

发表于:2018-12-16 / 阅读(126) / 评论(0) 分类 2016年VOA慢速英语(三)月

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The human genome was sequenced, and in the process of moving that forward the technology that was developed was incredible. And because of their efforts in human genome,

发表于:2018-12-24 / 阅读(261) / 评论(0) 分类 Scientific American(十)月

Pronouns and Their Antecedents Today were going to talk about pronouns that don't clearly match up with the nouns they are supposed to replace. Readers become unhappy when they have to guess what noun a writer is talking about, or readers may even ch

发表于:2019-01-02 / 阅读(177) / 评论(0) 分类 英语语法 Grammar Girl

Grammar Girl here. Today's topic, whose was written by guest writer Bonnie Trenga. First, for those of you who didn't listen all the way to the end of last week's show and were outraged that I used the words irregardless and cogitate; it was a joke;

发表于:2019-01-02 / 阅读(161) / 评论(0) 分类 英语语法 Grammar Girl

Grammar Girl here. Today's topic is generic personal pronouns. Nolan in Victoria, British Columbia, asked the following question: Just wondering about whether to use she or he in terms of giving examples. Since she was written out of the literature f

发表于:2019-01-07 / 阅读(205) / 评论(0) 分类 英语语法 Grammar Girl

This is Scientific American's 60-Second Science. I'm Steve Mirsky, got a minute? Neandertals were our closest relatives. And now we know a lot more about them. Because researchers have for the first time sequenced a complete Neandertal genomethat of

发表于:2019-01-08 / 阅读(235) / 评论(0) 分类 Scientific American(八)月

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(166) / 评论(0) 分类 Scientific American(十)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(162) / 评论(0) 分类 英语新闻

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(235) / 评论(0) 分类 VOA慢速英语2009年(五)月

Genome Shows Humans More Gorilla-like than Thought Sixty scientists worked over five years to sequence the genome of a single female lowland gorilla, the last of the great apes to have its DNA mapped. According to lead author Aylwyn Scally, of the Tr

发表于:2019-01-13 / 阅读(147) / 评论(0) 分类 VOA标准英语2012年(三月)

Scientists Decode Tsetse Fly Genome 科学家解密采采蝇基因序列 Scientists have mapped the genetic code of the tsetse fly, the insect responsible for African sleeping sickness. They said the findings could lead to better repellents and contr

发表于:2019-01-14 / 阅读(142) / 评论(0) 分类 VOA标准英语2014年(五月)

AUDIE CORNISH, HOST: Scientists have taken a big step towards making synthetic life. In other words, they figured out how to create a living thing with DNA that was written in a lab. NPR health correspondent Rob Stein has the details. ROB STEIN, BYLI

发表于:2019-01-16 / 阅读(200) / 评论(0) 分类 2017年NPR美国国家公共电台3月

Voice 1 Thank you for joining us for todays Spotlight program! Im Rebekah Schipper. Voice 2 And Im Liz Waid. Spotlight uses a special English method of Broadcasting. It is easier for people to understand, no matter where in the world they live. Have

发表于:2019-01-19 / 阅读(200) / 评论(0) 分类 环球英语 Spotlight

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(205) / 评论(0) 分类 60秒科学

New map of zebra finch DNA could provide keys to stuttering, autism and Parkinson's disease Vronique LaCapra | St. Louis, Missouri 05 April 2010 Photo: L. Brian Stauffer, University of Illinois News Bureau The zebra finch is the first songbird to hav

发表于:2019-01-31 / 阅读(172) / 评论(0) 分类 VOA标准英语2010年(四)月

US scientists have stripped life back to its bare essentials creating a synthetic microbe with the absolute minimum genetic information needed to grow and reproduce. 美国科学家将生命的多余部分剔除,只留下最基本的要素,由此创

发表于:2019-02-05 / 阅读(170) / 评论(0) 分类 英语新闻

BEIJING, Oct. 13 (Xinhuanet) -- Scientists have decoded the genome of Black Death which caused one of the worst plagues in human history. The finding was published Wednesday in the scientific journal Nature. A team of German, Canadian and American sc

发表于:2019-02-07 / 阅读(206) / 评论(0) 分类 英语新闻
学英语单词
ago are
air-conduction
airmail postage
alpha-dinitrophenol
angular movement pick up
apprehensibly
autometallography
auxiliary document
bar-tenders
Beinn Sgritheall
beverage tax
blood serum culture-medium
British Honduran
British Hovercraft Corporation
budgeted performance
Capitalized Lease Method
Chymotrysin
closing the book
cochlear ganglion
cosmetic second
Cowie Seamount
cutting operation
Cyder.
depanneurs
diffractive lens
dimension limit indicator
discounting of book-credits
DNA (digital network architecture)
duplex machine system
emission per unit length
endofunctors
extruding force
F.A.I.
family fringillidaes
fin-tilting machinery
flinchum
g.s
genus Iris
high performance tape polyurethane adhesive
hologymnocarpous
hydrodynamical particular
inspection method
kalkilia
keybeds
leaf-stalks
ligg. basium ossium metatarsi plantaria
light water line
linchpin
linum hirsutum
logicizing
look for something
loran rate
malagas
masculizes
master computer
mutated gene
mutual-inducatance
nonseries
noun-group
obliterations
odd term
odem
oil pressure line
one man grand jury
overburdened
paederastic
Palaeosmilia
paper reel
parabolic arch
pickling line
picture detection
pipe model theory
Pleth
points classification
pro industry
procellariid
pyophyte
reaction injection moulding
recomposed rock
relation model
reserve cell
run this way and that
souxite (varlamoffite)
St-Trudon
stranglers
summoned up
swing bowler
tabby-back corduroy
taxonomic phonemics
technical economics of architecture
temporarily discontinued
terrain representation
there's no accounting for taste
three-phase system
to look back
underheads
vertical gun arrangement
volume of simplex
wardrobers
world language
yearling foal
zygapophysis superior