Report, if you have a problem with this page“ The long-lived gene as an evolutionary unit is not any particular physical structure but the textual archival information that is copied on down the generations. [I]t is widely distributed in space among different individuals, and widely distributed in time over many generations. [A] successful gene will be one that does well in the environments provided by these other genes that it is likely to meet in lots of different bodies. ”
Richard Dawkins
From : The Blind Watchmaker: Why the Evidence of Evolution Reveals a Universe Without Design