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What is Double helix in Biology? PDF | Download eBooks

Learn Double helix definition in biology with explanation to study “What is Double helix”. Study double helix explanation with biology terms to review biology course for online degree programs.

Double helix Definition

  • Double helix is formed when DNA molecules have two polynucleotides, or "strands", that wind around an imaginary axis.

    Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson

Double helix Explanation

The term double helix basically refers to the secondary structure formed by the wounding of two sugar phosphate backbones of DNA around each other is such a way that it looks like a coil. This structure of DNA is a fundamental component in determining its tertiary structure which is important in gene expression.

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