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**osteoftex** · 03-25-2009, 08:05 PM

I was of the opinion 2 rednoses can't produce black until I read this from Willis book "Genetics of the Dog."

"It can be seen that the two breeds are solid colored (AA) and differ only in that one is unable to produce black pigment because it has the ee (red) combination while the other is unable to produce black pigment because of the bb (chocolate) combination. All other (coat color) genes in the two breeds are identical & are thus unaffected by the crossing, but in the B/E loci, the combination becomes Bb & Ee & thus black is now formed."

So according to Willis, 2 rednoses CAN produce black IF neither rednose is not a result of dd alone.

03-25-2009, 08:05 PM	#16
osteoftex Join Date Oct 2005 Posts 542 Senior Member	I was of the opinion 2 rednoses can't produce black until I read this from Willis book "Genetics of the Dog." "It can be seen that the two breeds are solid colored (AA) and differ only in that one is unable to produce black pigment because it has the ee (red) combination while the other is unable to produce black pigment because of the bb (chocolate) combination. All other (coat color) genes in the two breeds are identical & are thus unaffected by the crossing, but in the B/E loci, the combination becomes Bb & Ee & thus black is now formed." So according to Willis, 2 rednoses CAN produce black IF neither rednose is not a result of dd alone.
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