Such knowledge is too wonderful for me; it is high, I cannot attain unto
it.
Psalm 139:6
In the field of Chemistry there to forms of amino acids which are chiral. R (rectus) or right handed & S (sinister) which is called left handed. An exmaple of chiral would be your two hands. They are the same but if placed on top of each other they don't fit together. Picture trying to put a left handed glove on your right hand.
All amino acids are chiral except glycine and can exist in both forms, but only one form will work correctly within your body. All amino acids in the body must be either right or left handed in order to function properly.
For supposed evolution to occur-along each step of the path every move would require a synthesis of both left or right handed. Any mixture would cause serious damage to the evolving creature.
Sounds like we were DESIGNED....
Read below a detailed chapter on the Topic from the book Evolution:Possible or Impossible
by Dr. James Coppedge
http://creationsafaris.com/epoi_c04.htm