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  1. Nucleic acids (article) | Khan Academy

    DNA and RNA also have different structures; DNA's phosphate-sugar backbone contains deoxyribose, while RNA's contains ribose. While DNA is double-stranded and has the nitrogenous bases adenine, …

  2. DNA and RNA structure (practice) | Khan Academy

    A scientist designs a primer, which is a short oligonucleotide, for use in a DNA sequencing reaction. The primer is complementary to the DNA template shown below.

  3. DNA (video) | Structure of DNA and RNA | Khan Academy

    Composed of a sugar-phosphate backbone and base pairs (adenine-thymine, guanine-cytosine), DNA stores genetic information, replicates, and expresses traits. The human genome contains 6 billion …

  4. Gene expression and regulation | AP®︎/College Biology | Khan …

    Explore the molecular structure of DNA, including its double helix and complementary base pairing. Examine RNA’s single-stranded structure and its role in gene expression.

  5. Molecular structure of RNA (video) | Khan Academy

    DNA and RNA have different sugar backbones: deoxyribose for DNA and ribose for RNA. Notably, RNA has uracil instead of thymine as a nitrogenous base.

  6. DNA and RNA structure (practice) | Khan Academy

    A scientist designs a primer, which is a short oligonucleotide, for use in a DNA sequencing reaction. The primer is complementary to the DNA template shown below.

  7. RNA structure and function (article) | Khan Academy

    Learn about the structure of RNA and the many functions that RNA carries out in the cell.

  8. Introduction to nucleic acids and nucleotides - Khan Academy

    DNA and RNA, composed of nucleotide building blocks, store hereditary information. These polymers have a backbone of alternating ribose and phosphate groups, with nitrogenous bases forming ladder …

  9. Gene expression and regulation | AP®︎/College Biology | Khan …

    Explore the molecular structure of DNA, including its double helix and complementary base pairing. Examine RNA’s single-stranded structure and its role in gene expression.

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

    In order to understand the biological function of DNA, you first need to understand its molecular structure. This requires learning the vocabulary for talking about the building blocks of DNA, and how …