1. Genetic variability in a temperate intertidal Phoronid, Phoronopsis viridis

   • Francisco J. Ayala
   • James W. Valentine
   • Gary S. Zumwalt

   OriginalPaper Pages: 413 - 427

2. Multiple molecular forms of serum α₁-antitrypsin

   • Verle E. Headings
   • Sikta Bose

   OriginalPaper Pages: 429 - 440

3. An anomaly of the genetic regulation of the de novo pyrimidine pathway in the plant Arabidopsis

   • S. C. Chung
   • G. P. Rédei

   OriginalPaper Pages: 441 - 453

4. Properties of the competence-inducing factor of Bacillus subtilis 168I⁻

   • S. R. Ayad
   • E. R. A. Shimmin

   OriginalPaper Pages: 455 - 474

5. Quantitative genetic studies of the human plasma Lp(a) lipoprotein

   • John J. Albers
   • Patricia Wahl
   • William R. Hazzard

   OriginalPaper Pages: 475 - 486