Question

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

Answer 1

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

Answer 2

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.