Levene made which contribution to our understanding of dna structure? a. he determined that the nucleus contains dna. b. he determined that dna contains four nitrogenous bases. c. he determined that dna consists of nucleotides. d. he determined that the nitrogenous bases of dna are present in regular ratios.
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Levene made which contribution to our understanding of dna structure? a. he determined that the nuc...
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