WikiAnswers - Why do DNA molecules have a double helix shape
Microbiology question: Why do DNA molecules have a double helix shape? there are
3 parts of the dna molecules.
wiki.answers.com/Q/ Why_do_DNA_molecules_have_a_double_helix_shape

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• DNA (nucleic acid)
• Double Helix (Rock Band)
• double helix
• VSEPR theory
• helix