题目详情

基因工程与蛋白质工程的区别(  )

  • A.基因工程合成的是天然的蛋白质,蛋白质工程合成的不一定是天然存在的蛋白质
  • B.基因工程需对基因进行分子水平操作,蛋白质工程不对基因进行操作
  • C.基因工程是分子水平操作,蛋白质工程是细胞水平(或形状水平)
  • D.基因工程完全不同于蛋白质工程

正确答案及解析

正确答案
A
解析

蛋白质工程又称为第二代基因工程,它和基因工程的操作对象都是基因,都属于分子水平的操作;基因工程只是对基因进行切割和拼接,合成的仍然是天然存在的蛋白质,蛋白质工程的本质是改造基因,合成的可以是自然界不存在的蛋白质。

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