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General Biology 1 Final - Part 2 of 3
SAMPLE

Please be aware that you practice a sample exam set, which means that it’s mimicking a real exam. In order to have more accurate experience:

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14. DNA Synthesis / Chargaff's Rules / Problem 10

Erwin Chargaff discovered that in a DNA molecule, the number of purines always equals the number of pyrimidines. Which of the following base pairs correctly represents a purine-pyrimidine pair?

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