Answer:
The central dogma of molecular biology describes the flow of genetic information in cells from DNA to messenger RNA (mRNA) to protein. Because the information stored in DNA is so central to cellular function, the cell keeps the DNA protected and copies it in the form of RNA.
Explanation:
The central dogma of molecular biology states that DNA contains instructions for making a protein, which are copied by RNA. RNA then uses the instructions to make a protein. In short: DNA → RNA → Protein, or DNA to RNA to Protein.