Multiple Choice
In the structure of DNA, what five-carbon sugar is found in the backbone of each nucleotide?
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7. DNA and Chromosome Structure
DNA Structure
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In the DNA double helix, what holds the two antiparallel strands together?
A
Covalent disulfide bridges between paired bases
B
Hydrogen bonds between complementary nitrogenous bases (A–T and G–C)
C
Hydrophobic interactions between the sugar-phosphate backbones of the two strands
D
Phosphodiester bonds between nucleotides on opposite strands
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