An Anthropic Biological Principle?

For a while now I've been wondering if there is a biological parallel to the Anthropic Principle in physics (i.e. that the universe has a number of physical properties that are fine tuned to a level that allows life to exist).

An example of this could be the properties of a chemical like DNA polymerase.

For evolution to occur organisms need to be able to replicate themselves exceptionally well, but not perfectly. If they are not good enough at this process then there is no hope of any useful genetic information being passed down from generation to generation. On the other hand if they are too good at it then there is no room for error – errors that have the potential to bring about innovation and thereby evolution.

One of the biggest players in this process is DNA polymerase. This clever piece of kit is responsible for the putting together of new DNA strands and even has the ability to proof-read the code as it goes along. This, together with other factors, means that the copying process is over 99.9% accurate - just right.

It would be interesting to know how bad this copying process could get and still be viable for life, but certainly there can't be much margin for error.