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衰老的秘密 众所周知,不同的生物其寿命也相异,就此而言,男人和女人的寿命看来也略有差别。这清楚地表明,一切生物体的正常寿命是受其基因所决定的。不同的基因可能使人的寿命更长,故在调整人类寿命这一问题上,遗传工程师们也许有用武之地。但是,衰老不可能是由一个或几个基因所控制,因为那样则意味着象“闹钟”型开关系统一样简单。就象设计不同类型的钟表在上满发条以后所走的时间长短不同那样,遗传上所构成的不同的生物体其生存的时间也不尽相同。要调整时间的长短可能需要对其机制进行根
As we all know, the life of different creatures are also different, in this case, the life expectancy of men and women seem a little different. This clearly shows that the normal life span of all organisms is determined by their genes. Different genes may make people live longer, so genetic engineers may have a role to play in adjusting human life. But aging can not be controlled by one or a few genes because that means it’s as easy as an “alarm” switch system. Just as different types of timepieces are designed to be clocked after different lengths of time, the different organisms that are genetically composed survive in different ways. To adjust the length of time may need to its roots in the mechanism