Chargaff's analysis of the relative base composition of DNA was significant because he was able to show that
A)the relative proportion of each of the four bases differs within individuals of a species.
B)the human genome is more complex than that of other species.
C)the amount of A is always equivalent to T, and C to G.
D)the amount of ribose is always equivalent to deoxyribose.
E)transformation causes protein to be brought into the cell.

Question

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Chargaff's analysis showed that the proportion of adenine always equals thymine, and the proportion of cytosine always equals guanine, a phenomenon known as Chargaff's rules. This discovery was significant in helping Watson and Crick to propose the double-helical structure of DNA.

Chargaff's Analysis of the Relative Base Composition of DNA Was