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  • Atoms in Nucleic Acids (DNA & RNA): A Comprehensive Overview
    Nucleic acids, like DNA and RNA, are composed of the following atoms:

    Major components:

    * Carbon (C): Forms the backbone of the nucleic acid molecule.

    * Hydrogen (H): Present in the sugar and phosphate groups.

    * Oxygen (O): Found in the sugar and phosphate groups.

    * Nitrogen (N): Part of the nitrogenous bases (adenine, guanine, cytosine, thymine, and uracil).

    * Phosphorus (P): Forms the phosphate groups that link the sugar molecules together.

    Minor components:

    * Sulfur (S): Present in some modified bases, such as dihydrouracil.

    These atoms are arranged in specific molecules that make up the structure of nucleic acids:

    * Sugar: A 5-carbon sugar, either ribose (in RNA) or deoxyribose (in DNA).

    * Phosphate group: A negatively charged group containing phosphorus and oxygen atoms.

    * Nitrogenous base: A nitrogen-containing molecule that can be either purine (adenine or guanine) or pyrimidine (cytosine, thymine, or uracil).

    The sequence of nitrogenous bases in a nucleic acid molecule determines the genetic information it carries.

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