556 
STRUCTURE AND LIFE HISTORIES 
FIG. 408. Mendelian segregation in maize, a, the starchy parent; b, 
the sweet parent; C, the first hybrid (Fi) generation, produced by crossing 
a and b, snowing the dominance of starchiness; d, the second hybrid (Ft) 
generation, showing the segregation of starchiness and sweetness with the 
ratio of three starchy to one sweet (wrinkled) grain. Lower row, daughters 
of d; e, f, and g resulted from planting starchy grains. One ear in three is 
pure starchy, the other two mixed; h, result of planting sweet (wrinkled) 
seeds. They are pure recessives, and the ear is pure sweet. (After East.) 
(Cf-. Fig. 407.) 
