Science | September 5, 2012

By Elizabeth Pennisi

Comment from Old-Thinker News: Here’s a tip - research Epigenetics.

The human genome—the sum total of hereditary information in a person—contains a lot more than the protein-coding genes teenagers learn about in school, a massive international project has found. When researchers decided to sequence the human genome in the late 1990s, they were focused on finding those traditional genes so as to identify all the proteins necessary for life. Each gene was thought to be a discrete piece of DNA; the order of its DNA bases—the well-known “letter” molecules that are the building blocks of DNA—were thought to code for a particular protein. But scientists deciphering the human genome found, to their surprise, that these protein-coding genes took up less than 3% of the genome.

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