Then,they performed a series of steps in a test tube with chemicals designed to eliminate RNA strands representing wrong answers,and then they analyzed the remaining RNA strands to see if they all corresponded to correct answers.

• 然后，他们在试管中完成了一系列的实验步骤--用化学药品排除那些代表错误答案的RNA分子链，随后他们又对剩下的RNA分子链进行分析，看看它们是否全都与正确的答案相对应。