90 



INBEEEDING AND OUTBREEDING 



allelomorplis are concerned, but in the end the result is 

 similar. Heterozygotes are eliminated and homozygotes 



100^ 



Percent. of Heterozygous 

 Individuals in Each Salfed 

 Generation when the Nuratep 

 of Allelomorphs Concerned 

 Are: 1,5,10,15. 



Segregating Generations 



Fig. 24. — Graphs showing the reduction of heterozygous individuals and of heterozygous 

 allelomorphic pairs in successive generations of self-fertilization. 



remain. The probable number of homozygotes and any 

 particular class of heterozygotes in any generation r is 

 found by expanding the binomial 1 + (2'" - 1)" where n rep- 



