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

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

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DNA Structure and Replication
Which of the following is used to determine the appropriate stringency (Wallace rule)?

Tm = 69.3° + 0.41 (%)G+C -650/1
Tm = 4 x (No.of G:C base pair) + 2 x (No.of A:T base pair)
Tm = 2 x (No.of G:C base pair) + 4 x (No.of A:T base pair)
Tm = 4 x (No.of A:T base pair) + 2 x (No.of G:C base pair)

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