DolginNearly four decades after biochemist Phoebus Levene first postulated his "tetranucleotide hypothesis" in 1910, most scientists still believed that DNA was made up of equal numbers of the four nucleotide bases in a repeating tetrameric structure, with each subunit containing all four bases.
Then in 1947, John Masson Gulland, together with Dennis Oswald Jordan and their colleagues at University College, Nottingham, perfected a method of extracting DNA from calf thymus glands.
Then in 1947, John Masson Gulland, together with Dennis Oswald Jordan and their colleagues at University College, Nottingham, perfected a method of extracting DNA from calf thymus glands.
Then see what happend...
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