Adenine, guanine, cytosine, and thymine are the four nitrogenous bases present in the dna of all organisms. which scientist discovered these bases?

a. rosalind franklin

b. erwin chargaff

c. linus pauling

Erwin Chargaff was an Austro-Hungarian biochemist who immigrated to the United States and discovered four nitrogenous bases present in the DNA of all organisms.

So the question ask to choose among the following choices that states the scientist the discovered the bases that present in the DNA of all organism and base on my research. I would say that the answer is in letter B. Erwin Chargaff.  I hope you are satisfied with my answer

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