Answer:
The Dna stands for deoxy ribonucleic acid. It stores genetic information so that it can be passed down to offspring. It has helpers such as mrna( messanger) and trna( transfer) to copy dna. The dna is stored in the chromosomes in the nucleus. It is a double helix shape, but rna is a single helix. The double helix's "backbone" is comprised of various combinations of the 4 base nucleotides adenine thymine, guanine and cytosine. If it's rna than thymine is replaced with Uracil.
Explanation: Science!