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The strucure of dna is actually in a double helix arrangment. Double helix means that the two long chains of nucleotides are arranged in a spiral like a twisted ladder. The sides of the ladder are made up of alternating blank and blank molecules. The steps of the ladder are made of blank blank held together by hydrogen bonds.
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The strucure of dna is actually in a double helix arrangment. Double helix means that the two long c...
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