152 MODES OF RESEARCH IN GENETICS 



crete case. Assume that 2 s = 32, or s = 16. Start 



with a single A A + 2 Aa + aa family. 



Then 



o n _i = 0, 



Pn-l = 0, 



q n -i = 0, 

 r»-i = 1. 



Then in the next generation we shall have 



16 10 + | (0) + T V (1)| =1 AA family 



+ 16 f HO) + \ (1)1 = 4 AA + Aa families 



+ 16 fi (1)} = 2 ^a families 



+ 16 {i (0) + + i (x)| =4(AA+2Aa + aa) 



families 

 + 4 (Aa + aa) families 

 + 1 aa family. 

 This is the fact. 



In the next generation we shall have 



16 {1 + 1 + Jg (4)} = 36 AA families 

 + 16 \i (4) + | (4)j = 48 (AA + Aa) families 

 + 16 {£ (4)[= 8 Aa families 

 + 16 {| (4) + 2 + \ (4J = 80 (AA +2Aa + aa) 



families 

 + 48 (Aa + aa) families 

 + 36 (aa) families. 

 This is the fact. 



In the next generation we shall have 



16 {36 + \ (48) + T V (80)} = 16 X 53 = 848 AA 



families 



