DNA as genetic material

DNA, or deoxyribonucleic acid, is the molecular blueprint for all living organisms. It contains the instructions necessary for growth, development, and functioning. DNA is composed of four building blocks, known as nucleotides, which are arranged in specific sequences. These sequences form genes, the units of heredity that determine traits. During reproduction, DNA is passed from parents to offspring, ensuring continuity of genetic information. Its structure, a double helix, allows for accurate replication. Understanding DNA is crucial for fields like genetics, medicine, and biotechnology, as it underpins the diversity of life and the mechanisms of inheritance.