36 



Genes and Characters 



Fig. 12. Inherited coat colors in rabbits, (a) normal, CC; (b) chin- 

 chilla, c<^''cc^*; (c) Himalayan, c^c^; (d) albino, cc. These genes form a 

 series of multiple alleles. (From Keeler in the Journal of 'Heredity.) 



Fig. 13. An adult mouse showing a short-tail mutation. Vertebrae are 

 present at the base of the tail, but not at the tip. (From Dunn, Glueck- 

 sohn-Schoenheimer, and Bryson in the Journal of Heredity.) 



