


OF PARENTS BY THOSE OF THE CHILDERN. (ZENE 
not sufficient to explain their appearance in families with a large number 
of children which up- or downward surpass the indices of both parents. 
x 8. There are cases of prepotence, as well of the high index as of 
the low one. ; 
~ 9, Prepotence is either an accidental property of gametes or it is 
based upon ancestral influence. 
10. Prepotence causes selection. 
11. There must be made a distinction between selection based upon 
_ prepotence and selection based upon the meeting of many heredity- 
_ factors in a homozygote form. 
Le £ 
El 
ay: 

12. The notion prepotence is not a mendelian one. In matters of 
à _ variability there are however still more phenomena for which there is 
_ no mendelian explanation. 
2, 

