THE GENETICS OF TUMOR TRANSPLANTATION 283 



Table .^ 

 Thk Relation between the Percentage of Mice Susceptible to a Trans- 

 planted Tumor and the Number of Genes Responsible for the 



Susceptibility 



Table 4 

 Comparison of Observed and Expected Results in Growth of Tumor JwA 



With this beginning as a working hypothesis, experiments were continued 

 and extended. 



A sarcoma of the Japanese waltzing mouse JwB gave simpler results 

 indicating that from 4 to 5 genes were needed (46). 



