54 



THE INHERITANCE OF COLOR IN MICE. 



Cross 16. Black agouti heterozygous in dark eye and agouti crossed with black heterozygous 

 indarkeye. YzBriBiD^P'pA xYiBr^APp. Expectation, 3 B^j, 3 B.lpBAff.lpB. 



Mating. 



132 

 128 

 129 

 97 

 179 

 165 

 177 



Parents. 



447 X 454 



449 X 454 



452 X 454 



447, 449 X 454 



447-449-452x454. 



447 X 919 



452 X 919 



BAg. 



19 



B. 



20 



pBAg. 



pB. 



6 



Cboss 17. Black agouti heterozygous in black, dark eye, and agouti, crossed with black hete- 

 rozygous in black and dark eye. Y^BriBDiPpA xYiBriBDiPp. Expectation, 9 Bilp, 

 9 B, 3 pBAg, 3 pB, 3 BrAg, 3 Br, 1 pBrAg, 1 pBr. 



Cross 17a. Black agouti heterozygous in black, density, and agouti, crossed with black 

 heterozygous in density and black. YiBriBDdPuA xYiBr^BdPi. Expectation, 

 9 BAg, 9 B, 3 dBAg, 3 dB, 3 BrAg, 3 Br, I dBrAg, I dBr. 



Black agouti x brown. 



Cross 18. Black agouti heterozygous in black crossed with homozygous brown. 

 Y2Br2BD2P2A2 xYSrAPi. Expectation, 1 BAg, 1 BrAg. 



Cross 18a. Black agouti heterozygous in black and agouti crossed with homozygous brown. 

 YJBr^DJPiA xYiBrAPt. Expectation, 1 BAg, I BrAg, 1B,\ Br. 



