.94 



GERT BONNIER 



TABLE 11. 



Offspring of a wild type non-disjunctioiKil daiujhter from 638 table 2 

 and her exceptional female descendent^ when mated to eosin vermilion 



forked* Bar males. 



Percentage of exceptions 15,58 i l,oi. 



TABLE 12. 

 Offspring of a wild type non-dis junctional daughter from 602 table 2 

 and of one of her exceptional daughters, when crossed to eosin ver- 

 milion forked* Bar males. 



Percentage of exceptions 10,(u ± l,4o. 



Common percentage of exceptions from tables 11 and 12 14,i6±0,«2, 



Next a non-disjunctional eosin female from 589 (table 1) was 

 mated to a scute echinus cut vermilion male from 544 (table 10) con- 

 stituting culture 597 (tal)le 2), and from this culture wild type daugh- 

 ters were crossed to yellow and Bar males (table 13). In this line 

 the part of the A'^ common to the sex-chromosomes has its left limit 

 between vermilion and garnet and its right limit somewhere to the 

 right of forked. The percentage was 13,28 + 1,C8 in a total of 414. 



The mother of culture 596 (table 2) was an exceptional daughter 

 'from 589 (table 2) and she was mated to a scute garnet forked male 



