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  1. DNA function & structure (with diagram) (article) | Khan Academy

    Chromosomal DNA consists of two DNA polymers that make up a 3-dimensional (3D) structure called a double helix. In a double helix structure, the strands of DNA run antiparallel, meaning …

  2. DNA – Definition, Discovery, Structure, Functions, & Labeled ...

    Sep 13, 2023 · The two DNA strands (polymers) wound around each other in a right-handed double helix that looks like a twisted ladder or a spiral-shaped staircase. Each helix turn or …

  3. Diagram of DNA Structure - GeeksforGeeks

    Jul 23, 2025 · The diagram of DNA structure depicts a double helix structure, with nucleotides forming the sugar-phosphate backbone and nitrogenous bases pairing via hydrogen bonds.

  4. 12.1: The Structure of DNA - Chemistry LibreTexts

    DNA is a complex molecule which carries the genetic code. The diagram below shows a tiny bit of a DNA double helix. Figure 12.1.1: The double helical structure of DNA. The backbone of DNA …

  5. DNA Structure - Biology Dictionary

    Jan 21, 2021 · The nucleotides that make up DNA are joined together like a long string of beads, called a DNA strand. Each DNA molecule contains two DNA strands, which are twisted around …

  6. DNA Structure - Visible Body

    Each strand of DNA is a polynucleotide composed of units called nucleotides. A nucleotide has three components: a sugar molecule, a phosphate group, and a nitrogenous base.

  7. Double Helix Structure of DNA with Diagram - Microbe Notes

    Apr 24, 2024 · DNA (Deoxyribonucleic Acid) is a double-stranded molecule that contains the genetic information of an organism. It is a polymer of deoxyribonucleotides joined by a …