152 MODES OF RESEARCH IN GENETICS 



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



with a single AA + 2 Aa + aa family. 



Then 



o„_i = 0, 



Pn-l = 0, 



?»-i = 0, 

 r„_i = 1. 



Then in the next generation we shall have 



16 {0 + | (0) + tV (1)} = 1 AA family 



+ 16 \\ (0) + \ (1)} = 4 AA + Aa families 



+ 16 {£ (1)} = 2 Aa families 



+ 16 {i (0) + + J (i)} =4(AA+2Aa+aa) 



families 

 + 4 (-4 a + aa) families 

 + 1 aa family. 

 This is the fact. 



In the next generation we shall have 



16 [1 + 1 + & (4)} = 36 AA families 

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

 + 16 {$ (4)J= 8Aa families 

 + 16 ||(4) + 2 + J (4,} = 80 (AA + 2 Aa + aa) 



families 

 + 48 (Aa + aa) families 

 + 36 (aa) families. 

 This is the fact. 



In the next generation we shall have 

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

 families 



