2009-07-18, 10:42 AM
Much of life as we know it is based on double-stranded DNA. The pair of strands is fundamental to how cells reproduce and check for errors in DNA replication. Many proteins function based on a double-stranded model. Therefore, I don't think there is any advantage in having an added DNA strand.
Not only would it not guarantee gained function, it would introduce more room for error and mutation.
In addition, more DNA does not necessarily mean an organism is more complex. Humans do NOT have the largest known genome. That title is currently held by a species of fish.
Not only would it not guarantee gained function, it would introduce more room for error and mutation.
In addition, more DNA does not necessarily mean an organism is more complex. Humans do NOT have the largest known genome. That title is currently held by a species of fish.