RNA and DNA are nucleic acids important in the Central Dogma. DNA carries the all-important blueprint of an organism. RNA relays the blueprint to the ribosomes to become proteins, which are used by the cell.
DNA (deoxyribonucleic acid) is a double-stranded, double helix, main sugar component is deoxyribose, and nitrogen bases that pair with each other is A with T and G with C. It is found exclusively inside the nucleus.
RNA (ribonucleic acid) is a single-strand, main sugar component is ribose, and nitrogen bases: A, U, G, and C. It can be found in the nucleus and the cytoplasm.
Shown below is an image of RNA and DNA.