rDNA

例句：

1. 1. DNA is the blueprint for life on Earth.
   DNA是地球上生命蓝图。
2. 2. The study of rDNA hasled to important discoveries in genetics.
   研究rDNA在遗传学中取得了重要的发现。
3. 3. DNA sequencing is a crucial stepin deciphering the human genome.
   DNA测序是解读人类基因组的关键步骤。