EXTENDED SERIES. 



71 



Cross 77. Both parents heterozygous in the color factor, black and dark eye. 



YBnBdiPp xYBriBdiPp. Expectation, 27 dB, 9 dBr, 9 pdB, 3 pdBr, IG W. 



Dilute black x pink-eyed black. 



Cross 78. Dilute black heterozygous in dark eye crossed with homozygous pink-eyed black. 

 YoBr^BidiPp X YiBriBiD-iPi. Expectation, IB, 1 pB. 



Cross 79. Dilute black heterozygous in black crossed with pink-eyed black heterozygous 

 in density and black. YiBr-iBdiPt x Y^BriBOdp^. Expectation, 3 .6, 3 dB, 1 Br, IdBr. 



Dilute black x brown. 



Cross 80. Dilute black heterozygous in black, crossed with homozygous brown. 

 YiBnBdiPi X YiBr^DiPi. Expectation, 1 B, 1 Br. 



Cross 81. Dilute black heterozygous in black crossed with brown heterozygous in density. 

 YiBr^BdiPi X YiBriDdPo. Expectation, 1 B, 1 Br, 1 dB, 1 dBr. 



