WELL, that example raised a number of questions in my mind....Let me try to explain as I go on.
this 1st part is not a good analogy, because the bricklayers would represent the proteins rather than the DNA. The DNA is the blueprint...so if the blueprint is faulty, your wall would look like ANYTHING BUT a wall! The composition of the cement and bricks can be equated to RNA and if that i faulty your wall could end up as a starting point for the leaning tower of Pisa!
Sorry couldnt help myself but yea...
Well, the analogy was meant to illustrate the functional roles rather than be a detailed analogy.
It's been a while since I studied genetics, so correct me if I am wrong, but a detailed analogy might involve seeing the junk DNA as the "head office".
Its RNA as being a "corporate memo".
The encoder gene DNA as being the "site office".
It's RNA as being the "daily roster of tasks for that site".
The enzymes thus created being the "workers".
The raw material chemicals (fats, carbs, proteins, etc) as being the "cement".
If the head office sends a memo to start construction, but the "stop construction" memo is late, then the wall would be longer than originally intended.
well, even you have to admit, even the randomly selected part needs to be important enough to BREAK a whole system otherwise like silent mutations it can still yield a functional air craft and no one will know something is broken until they open it up for servicing...
Correct, but since evolution is only concerned with mutations which
do affect behavior, let's restrict the debate to those mutations. If there is nothing for natural selection to differentiate one organism from another, there is no basis for selection and evolution is not applicable.
Pry do explain...I like to hear what others have to say....it is interesting...
It's completely speculative and it would be hard for me to explain without getting into heavy quantum mechanics.
Broadly speaking, it's about successful mutations -- which, by definition, would exist in large numbers in succeeding generations -- providing a feedback loop backwards in time to favor their specific mutation to occur in the first place. It's a causality loop in time.
It's like saying that the lottery winner goes back in time and gives themself the winning lottery numbers.