60 



THE INHERITANCE OF COLOR IN MICE. 



Pink-eyed black agouti x pink-eyed black. 

 Cross 33. Both parents homozygous. YiBriBiD^piAi xYJBriBiDipi. Expectation, all pB^j, 



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

 black heterozygous in black. Y^BriBDzPiA x YiBrJBDiPi. Expectation, 3 pBAg, 

 3 pBrAg, 1 pB, 1 pBr. 



Pink-eyed black agouti x dilute black. 

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

 zygous in dark eye. YiBriBiDdpzAi xY^BviBifUPp. Expectation, 1 BAg, 1 dBAg, 

 1 pBAg, 1 pdBAg. 



Pink-eyed black agouti x dilute brown agouti. 



Cross 36. Both parents homozygous. YiBr2B2D2P2A2 x Y^Br2d2P^A2. Expectation, 

 BAg only. 



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

 zygous in dark eye. YiBriBiD^p^Ai 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. Y2BnB2Ddp2A x Y2Br2diP!iA. Expectation, 

 3 BAg, 3 dBAg, IB,1 dB. 



