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DNA as the Genetic Material

7. DNA and Chromosome Structure / DNA as the Genetic Material / Problem 2

The X-ray diffraction analysis by Rosalind Franklin and Maurice Wilkins demonstrated that:

A

the nitrogenous bases of DNA were held together by hydrogen bonds.

B

the structure of DNA was some sort of helix.

C

the structure of DNA is composed of nucleotides.

D

the number of purines is equal to the number of pyrimidines in a DNA molecule.

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