DNA

 This post introduces a conceptual data model of DNA, designed to clarify the structural relationships among its molecular components. From individual bases to the complete DNA sequence, each entity is defined and positioned within a logical framework. The model highlights how base pairs form the foundation of double-stranded DNA and how sequences encode genetic information. This structured approach supports both educational and analytical applications in biology and bioinformatics.

Modeling Based on the Author's Perspective

Entity Name	Description
Base	The fundamental chemical unit of DNA, consisting of adenine (A), thymine (T), guanine (G), or cytosine (C).
Nucleotide	A molecular building block of DNA, composed of a base, a sugar, and a phosphate group.
Base Pair	A pair of complementary bases (A-T or G-C) that form the rungs of the DNA double helix.
A-T Base Pair	A specific base pairing between adenine and thymine, held together by two hydrogen bonds.
G-C Base Pair	A specific base pairing between guanine and cytosine, held together by three hydrogen bonds.
Double Stranded DNA	The canonical structure of DNA, consisting of two complementary strands wound into a double helix.
DNA	The molecule that carries genetic information in living organisms, composed of nucleotides arranged in a double helix.
DNA Sequence	The linear arrangement of base pairs that encodes genetic instructions.

By organizing DNA into a coherent data model, we gain a clearer understanding of its molecular architecture and functional logic. This framework not only supports biological education but also lays the groundwork for computational analysis in genomics.