Which of the following steps has not yet been accomplished by scientists studying the origin of life?
A) synthesis of small RNA polymers by ribozymes
B) abiotic synthesis of polypeptides
C) formation of molecular aggregates with selectively permeable membranes
D) formation of protocells that use DNA to direct the polymerization of amino acids
E) abiotic synthesis of organic molecules

Question

Quizplus · Accepted Answer

Formation of protocells that use DNA to direct the polymerization of amino acids has not yet been accomplished by scientists studying the origin of life. While RNA has been found to play an important role in the early stages of life, the emergence of DNA as the primary hereditary molecule came later in evolution.

Which of the Following Steps Has Not Yet Been Accomplished