Forums Science Assignment Help What is the structure of a DNA molecule

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    Tyler
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    What is the structure of a DNA molecule?

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    juwanine
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    A molecule of DNA is double-stranded. The molecule has the shape of a double helix.

    The DNA molecule consists of two complementary strands oriented in an anti-parallel fashion. Each strand is composed of nucleotides. A nucleotide consists of a base (a purine or pyrimidine), a sugar (between the other two components) named deoxyribose, and a phosphate group. Nucleotides are linked to each other via phosphodiester bonds, forming a sugar-phosphate backbone to each strand.

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