Which statement best describes how Watson and Crick's model used other scientists work to create a model of DNA?
They used Chargaff's rule to determine that it contains ribose sugar
O They used Franklin's photo to determine that DNA was a double helix.
They used Levene's work to determine the number of base pairs in each strand.
O They used Nirenberg and Matthei's studies to determine that DNA is made of nucleotides.
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