Sunday, August 10, 2014
The Actual Definition of Biological Evolution
Here it is, an end to the lies and rumors, I will define what biological evolution is and give away the greatest secret scientists have been keeping from the general public. But first, let's look at what biological evolution is not.
Biological evolution is not morphing, one species does not turn into another species in any way. If such a thing did happen most biological theories would have to be radically altered to account for something which defies even the theory of evolution.
Many series of fiction use evolution to describe morphing, usually because the creators did not know better or it just had better response from the target audience. Such a genetic change in an organism would cause the body to be overtaken by cancerous tumors, the physiology would be so chaotic that organs would fail and poisons would be produced instead of the necessary chemicals.
Transitional forms do not look like one organism with the traits of two distinct organisms. I say "look" to mean appear, most small changes would have no change in the organism's appearance. A small change in the DNA is up to several hundred genetic changes, compound/colony species such as humans can and will have more than single celled animals.
In human DNA, upwards of five hundred changes in the DNA will result in less than 0.001% difference in the genetic make up. Each offspring has several hundred mutations in their DNA, most have absolutely no effect either because those markers are "switched off" or the new chemical produced has no effect on the cells.
When a marker or chromosome is "switched off" it means the DNA has a chemical bound to that location which prevents it from acting as a template for other chemicals. DNA is actually pretty simple to understand, it's like a chemical template, that attracts other chemicals in a sequence that causes them to bond then separate and react with other chemicals. The effects of these chemicals are the complex part of genetics, one that we are still working out.
Biological evolution is not one species giving birth to another completely different species. The number of changes required for this would result in a cancerous tumor instead of an offspring. We're talking about at least 1% of the DNA changing before an organism can even be almost another species, many species are separated by more than a 2% difference and can still breed with each other.
What actually defines the species barrier is virtually arbitrary, it depends on the species and how many different single celled organisms make it's whole. The chemicals produced by the DNA interactions determine the compatibility for producing offspring, not the DNA itself. Each cell is made up of chemicals produced by DNA, and incompatible cells, ie chemicals, cannot mingle.
Now, for the moment you have all been reading for, I shall unveil the true definition of biological evolution that is used by the highest levels of academia and scientific research. Be ready to make note of this momentous occasion for you may not likely ever read it again.
Biological Evolution: the change of frequencies of allele within in population.