60 



THE INHERITANCE OF COLOR IN MICE. 



Pink-eyed black agouli x pink-eyed black. 

 Cross 33. Both parents homozygous. YiBriBiDiPiAiXY^BriB-iDiPi. Expectation, all pB.4^. 



Cross 34. Pink-eyed black agouti heterozygous in black and agouti crossed with pink-eyed 

 black heterozygous in black. Y2Br2BDiPiA x YiBr-iBD^Pi. Expectation, 3 pBAg, 

 3 pBrAg, 1 pB, 1 pBr. 



Pink-eyed black agouti x dilute black. 



Cross 35. Pink-eyed black agouti heterozygous in density crossed with dilute black hetero- 

 zygous in dark eye. Y-zBriBoDdpiA-i xY^BriBidiPp. Expectation, 1 BAg, 1 dBAg, 

 1 pBAg, 1 pdBAg. 



Pink-eyed black agouti x dilute brown agouti. 



Cross 36. Both parents homozygous. YiBriB2D2PiAi x Y2Br2d2P2A2. Expectation, 

 BAg only. 



Cross 37. Homozygous pink-eyed black agouti crossed with dilute brown agouti hetero- 

 zygous in dark eye. F2J5r2^2/)2PiA2 X Y2Br2d2PpA2. Expectation, 1 BAg, 1 pBAg. 



Cross 38. Pink-eyed black agouti heterozygous in density and agouti crossed with dilute 

 brown agouti heterozygous in agouti. Y2Br2B2Ddp2A x Y2Br2d2PzA. Expectation, 

 ZBAg,^ dBAg, 1 B, 1 dB. 



