Multiple Choice
In the DNA double helix, what type of interaction holds complementary bases together across the two strands?
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7. DNA and Chromosome Structure
DNA Structure
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In the DNA double helix, what type of bond primarily holds the two antiparallel strands together?
A
Ionic bonds between the sugar-phosphate backbones
B
Phosphodiester bonds between nucleotides on opposite strands
C
Peptide bonds between nitrogenous bases
D
Hydrogen bonds between complementary nitrogenous bases
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