【趣谈英语】人类都有99%相似的基因-Humans Share 99% Of The Same DNA

 Pre-Listening Vocabulary

• cell: a single functional¹ unit of an organism
• reproduce: to make another living thing
• paternity: the state of being one’s natural parent (esp. father)
• forensic²: scientific evidence related to a criminal investigation³

Humans Share 99% Of The Same DNA⁴-人类共享着99%相似的基因

 

Did you know that all humans have almost exactly the same DNA? DNA is the genetic⁵ information that gets passed on when cells reproduce. It is found in every living organism. More than 99% of your DNA is the same as every other human’s in the world. In recent years, scientists concluded that even humans living on opposite corners of the earth share almost the same DNA. DNA samples are used for paternity tests, health screening tests, and forensic tests. The tiny differences in our DNA make a big difference in the courtroom.

1 functional   

adj.为实用而设计的，具备功能的，起作用的

参考例句：

• The telephone was out of order,but is functional now.电话刚才坏了，但现在可以用了。
• The furniture is not fancy,just functional.这些家具不是摆着好看的，只是为了实用。

2 forensic   

adj.法庭的，雄辩的

参考例句：

• The report included his interpretation of the forensic evidence.该报告包括他对法庭证据的诠释。
• The judge concluded the proceeding on 10:30 Am after one hour of forensic debate.经过近一个小时的法庭辩论后，法官于10时30分宣布休庭。

3 investigation   

n.调查，调查研究

参考例句：

• In an investigation,a new fact became known, which told against him.在调查中新发现了一件对他不利的事实。
• He drew the conclusion by building on his own investigation.他根据自己的调查研究作出结论。

4 DNA   

(缩)deoxyribonucleic acid 脱氧核糖核酸

参考例句：

• DNA is stored in the nucleus of a cell.脱氧核糖核酸储存于细胞的细胞核里。
• Gene mutations are alterations in the DNA code.基因突变是指DNA密码的改变。

5 genetic   

adj.遗传的，遗传学的

参考例句：

• It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
• Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。