Nucleic acid formation

Aztobacter vinelandii, an enzyme capable of forming RNA-like substances was isolated from a bacterium. Soon after, Escherichia coli was discovered which could catalize DNA-like substance from individual nucleotides.
 Arthur Kornberg and Severo Ochoa England 1955 Nucleic acid formation

Aztobacter vinelandii, an enzyme capable of forming RNA-like substances was isolated from a bacterium. Soon after, Escherichia coli was discovered which could catalize DNA-like substance from individual nucleotides.