|     Precisely Universally Conserved Amino Acid Residues
  (PUCPs) Families of homologous proteins from 45
  complete genomes representing 31 major phylogenic lineages were examined for
  amino acids which were exactly conserved in multi-sequence alignments. 
  A total of 256 Putatively Universally Conserved Positions (PUCPs) were found
  in 32 protein families.  PUCPs represent the precise preservation of
  information across billions of years and billions of billions of germ-line
  replications in independent lineages spanning very nearly all organisms that
  have ever lived.  It is believed that PUCPs will prove valuable for
  focusing attention on the very most critical protein-based constraints that
  underlie life itself and that they have far reaching philosophical
  implications (which are developed under the next topic).
       Evidence that Life on Earth is a product of Intelligent
  Design The available evidence relevant to the
  Directed Panspermia theory advanced by Crick, F.H.C. and Orgel, L. (1973)
  Icarus 19, 341, will be reviewed.  This topic was previously considered
  in the book Crick, F.H.C. (1981) Life Itself, (Simon and Schuster, New York).
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