Quote from the Selfish Gene

I am currently re-reading the Selfish Gene which is a book I think everyone should read. Few books are simultaneously beautifully written, clear in thought, and dense with information at the same time, but the Selfish Gene is certainly all this. As a teaser, take this often cited quote from the end of chapter two. Dawkins is talking about ancient molecules capable of making copies of themselves (replicators). These replicators are the rulers of the world, whereas we humans are just their machines that they build to benefit their own survival. Take it away Dr. Dawkins...

“Was there to be any end to the gradual improvement in the techniques and artifices used by the replicators to ensure their own continuation in the world? There would be plenty of time for improvement. What weird engines of self-preservation would the millennia bring forth? Four thousand million years on, what was to be the fate of the ancient replicators?

They did not die out, for they are past masters of the survival arts. But do not look for them floating loose in the sea; they gave up that cavalier freedom long ago. Now they swarm in huge colonies, safe inside gigantic lumbering robots, sealed off from the outside world, communicating with it by tortuous indirect routes, manipulating it by remote control.

They are in you and in me; they created us, body and mind; and their preservation is the ultimate rationale for our existence. They have come a long way, those replicators. Now they go by the name of genes, and we are their survival machines.”

A few interesting facts from "Molecular biology of the cell"

Here follows a few of the astonishing facts that you will learn if you read "Molecular Biology of the Cell" by Alberts et. al.

Did you know that
- During cell division your DNA is replicated at a speed of 1million nucleotide base pairs per second, and yet a mistake only occurs one time for every 1billion base pairs!
- Each nucleus in your body contains aproximately 2 meters of DNA in a nucleus that is six micrometers in diameter, this is equivalent to packing 40 kilometers of fine thread into a tennisball!
- All the ATP in our body (about one billion molecules) is used and recycled every 1-2 minutes. That means that we use and recycle 10000000 molecules of ATP per second!
- A extension of a grove in an enzyme by one nanometer can reduce its efficiency in carrying out its reaction by more than a thousand fold!