Multiple Choice
In the DNA double helix, what type of bond primarily holds the two antiparallel strands together?
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7. DNA and Chromosome Structure
DNA Structure
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In the DNA double helix, complementary base pairs (A with T, and G with C) are primarily held together by which type of interaction?
A
Ionic bonds formed between the sugar-phosphate backbones of opposite strands
B
Peptide bonds linking adjacent nucleotides within each strand
C
Hydrogen bonds between complementary nitrogenous bases
D
Covalent phosphodiester bonds between bases across the two strands
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