Prager, E M <br/><br/>
Slow evolutionary loss of the potential for interspecific hybridization in birds: a manifestation of slow regulatory evolution.  [electronic resource] 

 -  Proceedings of the National Academy of Sciences of the United States of America  Jan 1975 
 - 200-4 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0027-8424 
<br/><br/><label>Standard No.: </label>10.1073/pnas.72.1.200  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Biological Evolution<br/>Birds--anatomy & histology<br/>Chromosomes<br/>Complement Fixation Tests<br/>Electrophoresis, Polyacrylamide Gel<br/>Genotype<br/>Hybridization, Genetic<br/>Immune Sera<br/>Immunogenetics<br/>Serum Albumin--immunology<br/>Species Specificity<br/>Transferrin--immunology