Title: DNA Double Helix
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The DNA double helix is a fundamental structure in molecular biology, serving as the blueprint for life’s genetic information. Discovered by James Watson and Francis Crick in 1953, this elegant, spiraled structure comprises two long chains of nucleotides twisted around each other. The nucleotides, adenine (A), thymine (T), cytosine (C), and guanine (G), form base pairs, with A pairing with T and C pairing with G. The precise complementary pairing ensures the stability and integrity of the DNA molecule.

Each complete turn of the double helix constitutes approximately 10 base pairs, and the entire structure is held together by hydrogen bonds between the paired bases. The DNA double helix not only stores genetic information but also facilitates the essential processes of replication and transcription. During replication, the double helix unwinds, and each strand serves as a template for the creation of a new complementary strand. This process ensures the faithful transmission of genetic information to subsequent generations. The DNA double helix is a marvel of nature, embodying the intricate code that underlies the diversity of life on Earth.