The scientists who earned Nobel Prize in chemistry in 1989 for the discovery of Ribozymes are ---------.

Step-by-step solution

Sidney Altman and Thomas R. Cech were awarded the Nobel Prize in Chemistry in 1989 for their independent discoveries that RNA can act as a biological catalyst. These catalytic RNA molecules are known as ribozymes. Oparin and Haldane proposed the theory of chemical evolution. Crick and Orgel were involved in proposing the RNA world hypothesis. Urey and Miller provided experimental evidence for the chemical origin of life. Answer: Altman and Cech