DNA之謎


【東寫西讀電子報】摘錄《好讀周報》精彩話題,以推廣閱讀與寫作為核心內容,讓您掌握每周最新內容! 誰能幫你邁向健康人生?週週提供最新的健康情資,【常春EVERGREEN】幫你的健康打底,人生加分!
無法正常瀏覽圖片,請按這裡看說明   無法正常瀏覽內容,請按這裡線上閱讀
新聞  健康  財經  追星  NBA台灣  udn部落格  udnTV  讀書吧  
2019/08/02 第473期  |  訂閱/退訂  |  看歷史報份  |  寂天閱讀網
 
【編輯小語】 口語會話 Follow me
【英語學習Plus】 DNA之謎
【本月發燒書】 決勝新制多益:聽力閱讀6回模擬試題+完全剖析【聽力+閱讀雙書版】
【好康情報局】 新書推薦《彩圖實境旅遊英語【彩圖三版】》
 

【口語會話 Follow me 】

I can't top that.
我望塵莫及啊。

A: I got a perfect score on the math exam!
B: Well, I can't top that.

A: 我數學考了滿分呢!
B: 我望塵莫及啊。

────── 節錄《OMG! 超好用生活英語萬用句》
 

DNA之謎 The Wonders of DNA

DNA (deoxyribonucleic acid) helps to make you who you are. It is like a tiny instruction manual in each of your cells. DNA tells them how they should assemble your body. Your DNA determines what you will look like, and it even has a strong influence on your personality.

DNA is very similar from one human to another. In fact, scientists believe that the DNA of all humans is around 99 percent identical. It's that one percent difference that makes us unique individuals. And if that wasn't crazy enough, some studies claim that humans and chimpanzees have DNA that is 96 percent identical. Thus, a difference of one percent can make you bald, but four percent can have you swinging from the trees!

A DNA strand is called a "helix," and it looks like a pair of coiled strings. Each helix contains information in the form of chemicals. These chemicals are complicated instructions for the cells in your body. Since the instructions are very complicated, there can sometimes be mistakes when the DNA helix copies itself. This is called a "mutation." Mutations are slight changes in someone's DNA, and these changes can be responsible for serious diseases and other problems. Cancer is one such example. DNA mutations can dramatically increase a person's chance of developing cancer later in life.

Scientists have only recently been able to map out the entire DNA helix. This has helped them discover new ways to repair problems in people's DNA. However some people believe that continued DNA research could create negative consequences, like human cloning. Therefore, we should always keep this in mind and be cautious in our future DNA research.


 DNA(去氧核糖核酸)形塑出你的性格樣貌,它就像是深藏在細胞內的微小操作指南一樣。DNA 會告訴細胞要如何打造你的軀體,你的DNA決定了你的樣貌,甚至影響了你的性格。

每個人類個體的DNA 都十分相似。事實上,科學家認為所有人類的DNA 約99% 雷同。而那1%的細微差異,就足以讓你成為一個獨特的個體。更驚人的是,有些研究宣稱人類和黑猩猩的DNA有96% 相同。也就是說,1% 造成你禿頭與否,而4% 的差異則會影響你是否能在樹間擺盪!

DNA 鏈看起來就像兩股纏繞的繩子,稱為「雙螺旋」結構。每條DNA 螺旋上布滿資訊,以化學成分的型態顯示。這些化學成分是給身體細胞的複雜指令。由於這些化學元素太過精密複雜,當DNA 在自我複製時,它們可能會出現問題,這時「突變」就產生了。突變是DNA 的變異,這些變異有時會造成嚴重的疾病和其他問題。癌症即為一例,DNA 突變會大幅增加晚年罹癌的機率。

近來,科學家已經能夠排列出整個DNA序列。DNA 排序的目的是為了修復人類DNA 中的問題。然而有些人認為,持續研究DNA 可能會帶來負面影響,如複製人的問題。在未來的DNA 研究裡,我們應該更加小心謹慎。

──────選自《英語閱讀技巧完全攻略1【二版】(16K+1MP3)》
 
決勝新制多益:聽力閱讀6回模擬試題+完全剖析【聽力+閱讀雙書版】

輕鬆秒學英語會話小短句(25K+1MP3)

高中英單7000魔術記憶:從字首字根記憶英文單字【暢銷三版】(32K彩色+2MP3)

羅賓漢 Robin Hood【Grade 3經典文學讀本】二版(25K+1MP3)

 
 
 
寂天文化事業股份有限公司 版權所有 地址:106 台北市新生南路三段88號7樓之3
客服專線: (02) 2365-9739#17 ( 週一至週五 9:00 am ~ 6:00 pm 不含例假日 )
傳真專線: (02) 2365-9835 客服信箱:onlineservice@icosmos.com.tw
  免費電子報 | 著作權聲明 | 隱私權聲明 | 聯絡我們
udnfamily : news | video | money | stars | health | reading | mobile | data | NBA TAIWAN | blog | shopping