MENDEL'S TWO LAWS 



63 



S^ort Q Q 



Fig. 21. — Diagram to illustrate the inheritance of tall and short, 

 edible peas. The small letter, s, stands for the short-producing gene. 

 The large letter, 8^ for its normal allelomorph or tall. Only the first 

 and second generations are here shown. The second and third genera- 

 tions are shown in fig. 22. 



