Just to put the record straight, we share 97% of our genome with monkeys*. It's the 3% that makes us unique.
As said by myself and Crane, evolution can be seen every year when the influenza virus mutates (or evolves) into something entirely different, capable of bypassing our immunities.
Just taking a look at my biology notes (Grade 11 U biology, mind you; nothing entirely special), I can plainly see some of those facts that seem so perfect and flawless that it makes you really wonder if they were an accident.
The molecular structure of DNA is incredibly simple relative to its function. Not only is it simple but it is very efficient. The helical formation (if you're like me, you need a picture so just imagine a single coiled spring) actually comes with "scape-goat" genetic code (introns). This code is purposely exposed to all the mutations and harmful effects of the environment in order to protect the useful genetic code (exons).
DNA is responsible for the "directions" on making protien strands. In order to do this, a piece of DNA has to be copied (transcribed) into RNA which is fed through the nuclear membrane into the cytoplasm (RNA is now referred to messenger RNA or mRNA) of the cell. A ribosome attaches to the RNA and reads (translates) the codecs (groups of three Nitrogenous bases [The four of which are abbreviated to A, T, C, and G]). The translated codecs attract tRNA (transfer RNA) to them. At one end of the tRNA are the opposite Nitrogenous bases that are attracted to the original RNA and at the other end are amino acids (the "building blocks" of protein - this amino acid is specific only to a certain type of tRNA). The ribosome then moves over to the next codec and translates that. Another tRNA is attracted and another amino acid is set into place. A peptide bond is formed between the two amino acids and the first tRNA detaches and begins to search out another amino acid in the cytoplasm to attach to itself. This process continues over and over again, create a polypeptide. This polypeptide becomes relatively long and begins to fold along itself. Eventually, the polypetitde (of at least 50 amino acids) folds enough to be considered a protein. Now it can perform whatever function the cell needs it to.
All that to create a single protein strand! I mean... it like boggles the mind! Everything is so perfect in protein synthesis and it's just like... AH!
It's difficult to imagine that this was all accident. And if it was, could you imagine all the amounts of trial and error it would take to perfect that?
I could go on and on about this subject but I think that's enough for now. Not to say that God mysteriously does this all for us but... the whole process just astounds me and leaves me speechless and I find it so difficult to believe that it all happened by accident.
Edit: *Gribbin, John.
In search of the Double Helix. New York: McGraw-Hill Book Company, 1985.
Edited by Squee, 06 November 2004 - 05:17 PM.