o 
oo 
X 
CD 
'rO 
NO IlDVdd 1130 ON IAI AdflS 
82 
RELATIVE DOSE 
Figure 7-1. Typical 16-hour survival curves for five test compounds. 
Note: The curves are constructed from relative plating efficiency data by plotting the surviving cell fraction (S/S Q ) against relative 
dose (D/D 0 ). Concentrations or doses of toxicant employed in mutagenesis experiments are selected from such curves. 
