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人类基因组框架图公布后,有关基因的种种神奇说法铺天盖地而来,还有各种“基因药品”、“基因食品”也呼啦啦地涌现出来了。转基因抗虫棉、转基因抗病毒马铃薯、转基因抗虫小麦等。什么是“基因”和“转基因”呢?“基因”是生物基本的遗传功能单位,是控制生物性状的遗传物质。生物遗传的不是性状而是基因,它存在于脱氧核糖核酸(DNA)上。一个基因就代表一种遗传信息。基因表达的性状可以遗传给后代,例如,父母亲个子都高,其孩子也长得
After the announcement of the human genome map, all kinds of miraculous speeches about genes have sprung up, and various kinds of “gene drugs” and “gene foods” have also come out. Transgenic insect-resistant cotton, transgenic anti-virus potato, transgenic insect-resistant wheat. What is the “gene” and “genetically modified”? “Gene” is the basic unit of genetic function of the organism, genetic material to control biological traits. Biology does not inherit traits but genes, which are found on DNA. A gene represents a genetic message. Gene expression traits can be passed on to future generations, for example, parents are tall, their children also grow