Those DNA strands were fastened to a piece of glass covered with a thin sheet of gold, then bathed repeatedly in different solutions of enzymes that interacted with the DNA to weed out the wrong answers.

• 这些DNA链被挂到一块覆盖着金片的玻璃上，然后反复地浸入不同的酶溶液中，这些溶液中的酶与DNA发生相互作用，剔除掉不合格的答案。