Multiple Choice
What forms the "backbone" of a nucleic acid?
A) a chain of sugar and phosphate groups,linked through phosphodiester bonds
B) purine and pyrimidine pairs,hydrogen-bonded to each other
C) a chain of amino and carboxyl groups,linked via peptide bonds
D) a double helix of antiparallel strands
Correct Answer:
Verified
Correct Answer:
Verified
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