What do we mean by DNA?

Deoxyribonucleic acid more commonly known as DNA,all the necessary information is stored in the DNA it provides a specific and a unique identity to species,DNA is made up of molecules known as nucleotides,it is present in each cell of our body some part of the DNA also transferred from adult to their offsprings.

It is a complex molecular structure found in diff type of cells in an organism.

Thank you