The Roles of RNA and DNA

You can compare the different rolee played by DNA and RNA molecules in directing protein synthesis to the two types of plans used by builders. A master plan has all the information needed to construct a building. But builders never bring the valuable master plan to the building site, where it might be damaged or lost. Instead, they prepare inexpensive, disposable copies of the master plan called blueprints. The master plan is safely stored in an office. and the blueprints are taken to the job sita Similarly, the cell uses the vita] DNA “master plsn to prepare RNA bluepnnts. The DNA molecule remains within the safety of the nucleus, while RNA molecules go to the protein-building sites in the cytoplasm the ribosomes.