克隆是对生物基因的精确复制。
在进化学说中有一个信条,那就是生物基因的微小改变将会传递给后代。
A central tenet of evolution is that small changes in an organism's genome can be passed on to subsequent generations.
原则上,基因工程学很简单,但要在生物基因序列恰当的地方植入新基因却颇为困难。
In principle, genetic engineering is simple, but inserting a new gene into the right place in an organism's genome is fraught with difficulty.
New genes emerge as dominant, no longer recessive or latent, and organisms change.
新的基因出现并支配,不在隐性潜伏,然后生物就突变了。
Who were the organisms that would survive those conditions and then contribute to the gene pool?
什么生物体可以在那样的条件下存活,这又会导致基因库怎样的改变
This concept of introducing foreign genes, genes that are made of recombinant DNA into animals using this kind of technique is widely used in biomedical research.
这种通过基因重组,来向动物体内导入外源基因的方法,广泛应用于,各种生物医药的研究中
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