82 



SEX-LINKED INHERITANCE IN DROSOPHILA. 



NEW DATA CONTRIBUTED BY A. H. STURTEVANT AND H. J. MULLER. 



Data from several experiments upon sex-linked characters described 

 in this paper have been contributed by Dr. A. H. Sturtevant and Mr. 

 H. J. Muller, and are given in table 63. 



Table 63. — Data contributed by A. H. Stiirievant and H. J. Muller. 



jens. 



Yellow white X bifid 



Yellow X vermilion 

 bar 



White bifid X forked 



Vermilion miniature 

 X sable 



Sable rudimentary X 

 forked 



Classes. 



y w 



bi 



W 



233 254 



vB' 



99 lOI 



w bi 



84 77 



V m 



152 III 



143 195 



y+Y_21 



60 ss 



w 



y w bi 



10 



y ,B- 



49 



48 



vv bi f 



9 6 65 



V S 

 -+ 



m 



4 2 



i*— f 



26 27 



59 



V m s 



12 



s__^ 



w bi 



y V 



=H — I 



14 



w 



Vf 



V 



-H h- 



m s 



+ — ^ 



r f 



Total. 



506 



435 32 



Cross-over values. 



Yellow 

 white. 



0.6 



Yellow 



ver- 

 milion 



306 



286 



398 



White 

 bifid 



Ver- 

 milion 

 minia- 

 ture 



2.1 



Sable 

 rudi- 

 men- 

 tary. 



13-3 



White 

 bifid. 



3-2 



Ver- 

 milion 

 bar 



28 



Bifid 

 forked 



42 



Minia- 

 ture 

 sable. 



Rudi- 

 men- 

 tary 

 forked 



Yellow 

 bifid. 



3.8 



Yellow 

 bar. 



49 



White 

 forked. 



45 



Ver- 

 milion 

 sable. 



;.i 



Sable 

 forked. 



15 



White Bifid X Rudimentary. 



F2 females. 



w bi 



w 



bi 



F2 males. 



wbi 



w r 



wbi r 



w 



+7— f 



bi'r 



Total 



Cross-over values. 



White 

 bifid. 



Bifid 

 rudi- 

 men- 

 tary. 



White 

 rudi- 

 men- 

 tary. 



228 335 



15 II 



150 66 



2 10 



29 135 



395 



3-8 



42.3 



445 



White BifidX Miniature Rudimentary. 



w bi 



w 



bi 



-H H- 



++ 



+-I-+ 



344 



31 



109 



58 



41 



