How are nucleotides arranged in DNA?

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Multiple Choice

How are nucleotides arranged in DNA?

Explanation:
Nucleotides in DNA are connected through phosphodiester bonds that link the phosphate of one nucleotide to the sugar of the next, creating a continuous sugar-phosphate backbone. Two such strands run in opposite directions and pair their bases through hydrogen bonds, forming a double helix. Base pairing (A with T, G with C) stabilizes this structure and explains the regular, predictable shape of DNA. The other options describe no fixed structure, a random coil, or bonds that create proteins, none of which match DNA’s actual nucleotide connectivity and double-helical organization.

Nucleotides in DNA are connected through phosphodiester bonds that link the phosphate of one nucleotide to the sugar of the next, creating a continuous sugar-phosphate backbone. Two such strands run in opposite directions and pair their bases through hydrogen bonds, forming a double helix. Base pairing (A with T, G with C) stabilizes this structure and explains the regular, predictable shape of DNA. The other options describe no fixed structure, a random coil, or bonds that create proteins, none of which match DNA’s actual nucleotide connectivity and double-helical organization.

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