DNA is a biological molecule that carries the information an organism needs to function, develop and reproduce. 🔬
It consists of four different bases: adenine, thymine, guanine and cytosine. 🧬
A gene is a DNA segment and the basic unit of heredity. Genes contribute to phenotype and control the expression of one or more traits.
➡️ Mutations in genes, which are changes in the DNA sequence, are responsible for the diversity among organisms and they do not always cause diseases.