1. Evolutionary divergence and length of repetitive sequences in sea urchin DNA

   • Roy J. Britten
   • Dale E. Graham
   • Eric H. Davidson

   OriginalPaper Pages: 1 - 23

2. Organization and evolution of the mitochondrial genome of yeast

   • Giorgio Bernardi

   OriginalPaper Pages: 25 - 35

3. Hemoglobin vancouver [α₂β₂ 73(E17) Asp→ Tyr]: Its structure and function

   • R. T. Jones
   • B. Brimhall
   • G. Gray

   OriginalPaper Pages: 37 - 44

4. Congruency of phylogenies derived from different proteins

   • Ellen M. Prager
   • Allan C. Wilson

   OriginalPaper Pages: 45 - 57

5. Origin of organic compounds on the primitive earth and in meteorites

   • Stanley L. Miller
   • Harold C. Urey
   • J. Oró

   Synthesis Pages: 59 - 72

6. Gene control in eukaryotes and thec-value paradox “Excess” DNA as an impediment to transcription of coding sequences

   • Emile Zuckerkandl

   OriginalPaper Pages: 73 - 104