Deoxyribonucleic acid (DNA) is the molecule that carries the
genetic instructions essential for life. Its unique structure is
crucial for the storage and transfer of genetic information.
DNA is composed of two strands of nucleotides linked
together. Each nucleotide consists of three components:
Phosphate group
Deoxyribose (5-carbon sugar)
And a nitrogenous base
which can be one of the