Which of the Following Steps Has Not Yet Been Accomplished

question 42

Multiple Choice

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

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