EXTENDED SERIES. 



71 



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



YBriBdiPp xYBnBdiPp. Expectation, 27 dB, 9 dBr, 9 pdB, 3 pdBr, 16 W. 



Dilute black x pink-eyed black. 



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

 YtBrJSiitPp X YiBviBiDiPi. Expectation, IS, 1 pB. 



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

 in density and black. YJBriBd^Pi x YtBriBDdpi. Expectation, 3 B, 3 dB, 1 Br, IdBr. 



Dilute black X brown. 

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

 YiBriBdiPi X YzBriDJPi. Expectation, \B,l Br. 



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

 YsBriBdiPi x YJBriDdPi. Expectation, 1 B, 1 Br, 1 dB, 1 dBr. 



