THE MOLECULAR BASIS OF INHERITANCE
STRUCTURE OF NUCLEIC ACIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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J. Watson & F. Crick
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O. Avery
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R. Franklin
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Chargaff
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Detailed explanation-1: -Erwin Chargaff found that in DNA, the ratios of adenine (A) to thymine (T) and guanine (G) to cytosine (C) are equal. This parity is obvious in the final DNA structure.
Detailed explanation-2: -15251. Discovering the rules of complementary base pairing, Erwin Chargaff. Erwin Chargaff talks about his discovery – a major step for building the DNA model.
Detailed explanation-3: -As a biochemist at Columbia University in the 1940’s, Dr. Chargaff discovered regularities among the four chemical units of DNA known as bases, pointing directly to its role as the hereditary material of living organisms. But he was unable to interpret the meaning of his finding, a failure that allowed Dr.
Detailed explanation-4: -Key conclusions from Erwin Chargaff’s work are now known as Chargaff’s rules. The first and best known achievement was to show that in natural DNA the number of guanine units equals the number of cytosine units and the number of adenine units equals the number of thymine units.