Study of the Origin of Life Has Resulted in the Breakdown

question 8

Multiple Choice

Study of the origin of life has resulted in the breakdown of cellular development into overlapping stages,beginning with the synthesis of precursor molecules for the synthesis of nucleotides and amino acids and ending in polymers enclosed in membranes acquiring cellular properties.Which of these stages were a focus of study for Miller and Urey in their FIRST experiment?

• A)Stage 1: Nucleotides and amino acids were produced prior to the existence of cells.
• B)Stage 2: Nucleotides became polymerized to form RNA and/or DNA,and amino acids became polymerized to form proteins.
• C)Stage 3: Polymers became enclosed in membranes.
• D)Stage 4: Polymers enclosed in membranes acquired cellular properties.
• E)Stage 5: Ribosomes were developed inside the membranE.

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