84 



SEX-LINKED INHERITANCE IN DROSOPHILA. 



SUMMARY OF ALL DATA UPON LINKAGE OF GENS IN CHROMOSOME I. 



In table 65 all data so far secured upon the sex-linked characters are 

 summarized. These data include the experiments previously pub- 

 lished in the papers given in the bibliography and the experiments 

 given here. The data from experiments involving three or more loci 

 are calculated separately for each value and included in the totals. 



Table 65. — A summary of all linkage data upon chromosome I. 



Gens. 



Yellow lethal 1 



Yellow lethall^-.... 



Yellow white 



Yellow abnormal 



Yellow bifid 



Yellow club 



Yellow vermilion. . . . 

 Yellow miniature. . . 



Yellow sable 



Yellow rudimentary. 



Yellow bar 



Lethal 1 white 



Lethal 1 miniature. . 



Lethal \b white 



White facet 



White abnormal. . . . 



White bifid 



White lethal 2 



White club 



White lethal sb 



White lemon 



White depressed. . . . 



White lethal sa 



White vermilion . . . . 

 White reduplicated. . 

 White miniature.. . . 



White furrowed 



White sable 



White rudimentary. 



White forked 



White bar 



White fused 



White lethal sc 



Facet vermilion 



Facet sable 



Bifid vermilion 



Bifid miniature 



Bifid rudimentary... 



Bifid forked 



Lethal 2 vermilion. . 

 Lethal 2 miniature. . 



Club lethal 3 



Club vermilion 



Lethal sb miniature. 

 Lemon vermilion 



Total. 



131 



744 



81,299 



15,314 

 3,681 



525 



13,271 



21,686 



1,600 



2,563 

 626 



1,763 



814 



846 



666 



16,300 



23,595 

 8,011 



2,251 



3,678 



241 



59 



1,150 



27,962 



418 



[10,701 



208 



2,511 



6,461 

 3,664 



5,955 

 430 



3,053 



852 



186 



2,724 



219 



899 



306 



1,400 



6,752 



222 



5,558 



3,678 



241 



Cross-overs. 



I 



6 



875 

 299 

 201 



93 



4,581 



7,559 



686 



1,100 



300 



7 



323 



o 



7 



277 

 1,260 

 767 

 321 

 572 



35 

 12 



256 



8,532 



121 



31,071 



63 



1,032 



2,739 



1,676 



2,601 



186 



1,406 



278 



80 



849 



67 



384 



130 



248 



1,054 



29 

 1,047 



733 

 29 



Cross-over 

 values. 



0.8 



0.8 



I.I 



2.0 



5-5 



177 



34-5 



34-3 



42.9 



42.9 



47-9 

 0.4 



39-7 

 0.0 

 I.I 

 1-7 

 5-3 

 9.6 



143 

 15.6 



14-5 



20.3 



22.2 



30.5 

 28.9 



33-2 



30.3 

 41 .2 

 42.4 



45-7 

 43-6 



43-3 

 46.0 

 32.6 

 43 -o 



311 



30.6 

 42.7 

 42.5 

 17-7 

 15-4 

 13.0 

 18.8 

 19.9 

 12.0 



