DNA Structure and Replication
The overall conclusion of the Hershey-Chase experiment was that

the ratio of Adenine to thymine was always the same
phage DNA was similar to bacterial DNA
DNA was responsible for heredity
proteins and DNA were responsible for heredity

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DNA Structure and Replication
The higher order structure of DNA shows symmetry, whereas the higher order structures of most proteins do not. Why isn't protein shape more regular like DNA?

DNA has one main function in cells whereas proteins have many.
Some S amino acids cause proteins to bend; others cause protein to flatten.
The many different amino acid R groups on proteins confer many different shapes.
All of these

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