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

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

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DNA Structure and Replication
The B-DNA structure found in solution is a

right-handed double helix of parallel chains (∼10 bp/turn)
left-handed double helix of antiparallel chains (10 bp/turn)
right-handed double helix of antiparallel chains (∼10 bp/turn)
left-handed zig-zag helix of antiparallel chains (10 bp/turn)

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