Which of the Following Did Watson and Crick Already Know

question 32

Multiple Choice

Which of the following did Watson and Crick already know when they were trying to determine the structure of DNA?

• A)The number of purines is always larger than the number of pyrimidines.
• B)The number of pyrimidines is always larger than the number of purines.
• C)The number of cytosines is always the same as the number of adenines.
• D)The number of guanines is always the same as the number of thymines.
• E)The number of purines is always the same as the number of pyrimidines.

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