One fear, however, is that H5N1 might become better at infecting humans by swapping genetic parts (reassortment) with types of flu virus that already infect humans easily.
但是让人感到恐惧的是，H5N1可以与更容易对人类造成感染的流感病毒交换基因片段(重组)而得到进化。
The first involves the fear that genetic determinism cheapens human volition.
首先，有人担心基因决定论会使人类意志力量的价值降低。
[color=#444444]The first involves the fear that genetic determinism cheapens human volition.
[color=#444444]第一类观点担心基因决定论将减弱人们的决心。
So a particular fear, like a fear of snakes or the fear of spider, say, is not genetic, but the overall tendency to have fearful responses, is.
所以一个特定的恐惧表现，就如惧怕蛇或者蜘蛛，不是源于基因，而是整体上的恐惧反应倾向是基因决定的。
Japanese scientists say they've used genetic engineering to create mice that show no fear of felines, a development that may shed new light on mammal behavior and the nature of fear itself.
日本科学家称他们已利用基因技术创造出不怕猫的老鼠，这项成果可能会解释哺乳动物的行为举止，揭示恐惧的本质。
Study found that patients tend to have a family history of panic, that fear may be caused by genetic effects.
研究发现恐怖症患者往往有家族史，也就是说恐惧症可能受遗传影响而产生。
Now, psychiatrist Kenneth Kendler of the Medical College of Virginia in Richmond and his colleagues have found that the genetic factors that leave a person prone to fear also shift during development.
现在，Richmond的弗吉尼亚医学院精神病医师KennethKendler和他的同事发现的使人恐惧的遗传因素也在随着人的长大而发生变化。
We've been looking at fear from a biological perspective, and someone asked whether the tendency to be fearful is genetic.
我们已经从生物学角度剖析了恐惧，有些人提问说是否恐惧的倾向性是由基因决定的。
We've been looking at fear from a biological perspective, and someone asked whether the tendency to be fearful is genetic.
我们已经从生物学角度剖析了恐惧，有些人提问说是否恐惧的倾向性是由基因决定的。
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