Question

Indicate the chronological sequence of the following events by numbering the spaces in front
of each statement.

Answer 1

_____ Oswald Avery discovered that nucleic acids were the carriers of genetic information.
_____ Scientists worked out the structures of the four classes of biochemicals: proteins,
carbohydrates, lipids, and nucleic acids.
_____ Rosalind Franklin used X-ray diffraction to study the structure of DNA.
_____ Joseph Priestley discovered oxygen.
_____ The theory of vitalism was developed.
_____ Chromatography was developed and used to determine the sequence of amino acids in
proteins.
_____ Genetic engineering techniques began to be used in laboratories.