SSS 2012-05-02
时间：2019-01-08 作者：英语课 分类：Scientific American(五)月
英语课
This is Scientific Americans 60 Second Science, I am Rose Eveleth. Got a minute?
Sound and touch may seem completely separate, except possibly when playing the game Operation. But it turns out that the two senses are actually quite entwined: a new study finds that people with hearing issues often also have problems with touch.
Researchers compared sets of twins, some identical and some fraternal. The identical twins, obviously, have the same genome and thus the same mutations. The fraternal twins have genetic 1 differences. Other subjects in the study were congenitally deaf.
To determine how acute their hearing was, the subjects reported whether they could hear various high frequencies. To evaluate touch they were asked to differentiate 2 different surfaces with their fingertips.
The research revealed that touch sensitivity was highly heritable and connected closely with hearing ability. The better the twins could sense touch, the better they could hear, and vice 3 versa. One in five subjects that had congenital deafness also had a poor sense of touch. The research is in the journal Public Library of Science Biology.
Next the researchers want to figure out which genes 4 are faulty. After all, addressing the problem could kill two birds with one stone.
Thanks for the minute for Scientific Americans 60 Second Science, I am Rose Eveleth.
adj.遗传的，遗传学的
- 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。
vi.(between)区分；vt.区别；使不同
- You can differentiate between the houses by the shape of their chimneys.你可以凭借烟囱形状的不同来区分这两幢房子。
- He never learned to differentiate between good and evil.他从未学会分辨善恶。
n.坏事；恶习；[pl.]台钳，老虎钳；adj.副的
- He guarded himself against vice.他避免染上坏习惯。
- They are sunk in the depth of vice.他们堕入了罪恶的深渊。