DNA is the molecule that holds the instructions for all living things. DNA achieves this feat of storing, coding and transferring biological information though its unique structure.
DNA is the molecule that holds the instructions for growth and development in every living thing. Its structure is described as a double-stranded helix held together by complementary base pairs.
The basic units of DNA are nucleotides. These nucleotides consist of a deoxyribose sugar, phosphate and base.