Quote Originally Posted by andruejaysin
For every improvement there are a million failures, it's simply that these go nowhere, while the rare possitive mutation survives. Obviously you know this already
In fact you are wrong... well mostly wrong.
If you want to only look at the BROAD idea of evolution, then yes what you said is partly correct.
BUT
If you were to look at a specific organism... that statement is totally incorrect. Infact, there are many repair mechanisms that are readily available inside every nucleus in your body. Everytime your exposed to UV, you have a chance of mutating DNA... mutations happen spontaneously all the time.
Lets look at DNA replication. In eukaryotes, DNA is replicated anywhere from 500-1000 base pairs per second. Thats 1000 bp per chromosome (46), per nucleus (trillions) in your entire body. Your DNA polymerases will make a mistake about every 1 million base pairs, but thanks to repair proteins we rarely have anything to worry about.
Maybe you dont understand that cells go through numerous functions that include replication, translation, transcription, and protein sythesis (just to name a few associated with DNA). All of these functions have no "brain" to rely on. There is no little person riding around telling the ribosomes to translate the mRNA so they can make proteins... all that happens because the ribosome complex (which is nothing but a bunch of atoms) has sites on it that are exremely specific to the tRNA holding the amino acid.
Dont you get it? All this naturally occuring chemistry is far too specific to have happened by chance.

Quote Originally Posted by CJBHM52
can you provide one fact that it is too complex to have evolved from some single cell organism? how do you know its too complex for nature?
I'm not saying evolution doesnt exist... we all evolved from simpler organisms.
Procaryotes: Very simple DNA molecules... most of the DNA is composed of coding regions (no DNA is wasted). Transcription and translation both happen in the cytoplasm and only one enzyme (RNA Polymerase) makes the RNA.

Eucaryotes: Very complex DNA molecules (and MUCH larger)... Very little of the DNA is composed of coding regions (exons: "express regions") and the rest is composed of non-coding regions (introns: "intervening regions"). These introns must be spliced out using special proteins before they leave the nucleus. Transcription happens in the nucleus whereas translations happens in the cytoplasm and we have 3 enzymes (RNA Polymerase I, II, and III) that all makes different RNA.

Obviously these two systems are VERY similar... but unicellular organisms dont need the complexity that we need because they handle much fewer genes.

I never said it was too complex for nature. "nature" IS, afterall, all of this happening. I said it was too complex to have designed itself.

Quote Originally Posted by Polymirize
Dude, I have been searching for one. But it's harder than you'd think.
LOL ok...


Has anyone ever wondered by we all start from one cell... and then become many, but we have skin cells and bone cells etc.... and they are totally different?? I thought all cell carry the same set of genetic info???
Well youre right, they do...
Its done by a process called gene regulation. Basically, in eukaryotes, if order for an RNA POL to transcribe your DNA, it has to associate itself with many different protiens in order to be able to attach to the DNA strand.
A few of these protiens are called transcription factors (TFIIA, TFIID, etc..)
Now, on each DNA strand, there are multiple sequences called genes. Each gene has something called a promoter infront of it. Inside this promoter region are sequences called regulatory promoters. There arent many of them so the cell uses different combinations for different genes.
In order for the RNA POL to transcribe that gene, it has to have the transcriptional factors readily available in order to bind to the regulatory promoters. If they arent there, the gene product wont be made, and the gene wont be expressed.
You can keep going up the ladder if you want to know how the cells knows the make those transcription factors... but that just shows you how chemically involved the whole system is.
There is NO "brain"... just chemicals that must follow certain rules... and DO, therefore creating life.
Yeah ok... it wasn't designed by something... your right.