Multiple Choice
Who proposed that the structure of DNA is a double helix with two polynucleotide chains running in opposite directions and held together by hydrogen bonding between pairs of nitrogenous bases?
A) Hershey and Chase
B) Chargaff
C) Franklin
D) Watson and Crick
E) Meselson and Stahl
Correct Answer:

Verified
Correct Answer:
Verified
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