Multiple choice

Whose observations supported the base-pairing rules?

  1. Rosalind Franklin

  2. James Watson

  3. Francis Crick

  4. Erwin Chargaff
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Erwin Chargaff discovered that the amount of adenine equals thymine and the amount of guanine equals cytosine, which provided the basis for base-pairing rules.

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