单选题:下列对“不同物种似乎是通过长期复制、改良和组合现存基因而获得进化的”这句话的理解,错误的一项是(  )。

题目内容:
下列对“不同物种似乎是通过长期复制、改良和组合现存基因而获得进化的”这句话的理解,错误的一项是(  )。 A.我们在回溯生物进化史的过程中又会发现,人类曾与植物、动物以及软体虫和有翅昆虫共同分享无数基因
B.人与老鼠的基因极为相似,猩猩的DNA也与人只相差1.5%,人之所以为人的奥秘就在于通过长期复制、改良和组合现有基因而获得进化
C.这种逐渐从多细胞有机物中汲取新鲜养分的“复制”,才使人类不断进化以至于成为超越低级生命形式的高级动物
D.全人类只有一个共同的基因组,但是由于各种内外因素的作用,世界上每个人都有差别。这正是生物通过长期复制、改良和组合现存基因而获得进化的佐证

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