Recent endeavours such as the Human Genome Project have profoundly increased what we know about DNA, the blueprint for life. These efforts provide vast amounts of information regarding the genomes, or complete genetic sequences, of humans and other species. For example, genes are now understood to constitute only a small portion of the human genome, while the remaining portion is the subject of intense research. Much remains unknown about where genes begin and end, what they do and how they do it. DNA research remains robust and routinely yields new synthetic DNAs and purified naturally occurring DNAs. Patents remain vital to protecting these new DNA inventions.