Question

who proposed secondary structure of DNA????????​

Answer 1

Explanation:

In molecular biology, two nucleotides on opposite complementary DNA or RNA strands that are connected via hydrogen bonds are called a base pair (often abbreviated bp). In the canonical Watson-Crick base pairing, adenine (A) forms a base pair with thymine (T) and guanine (G) forms one with cytosine (C) in DNA.

Answer 2

Explanation:

Some observations made on deoxyribonucleic acids in solution suggested that DNA molecules — as they could be extracted from cells — had structural characteristics different from those expected in molecules having only the primary structure we just described; on the contrary, after heating, the DNA molecules behaved like simple flexible chains.

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