The names "bluenose", "blacknose", "rednose" are just a physical description on the color of the nose itself...nothing else... I think some get confused when the parents were say a "bluenose" (Bb,dd) and a "rednose" (bb,Dd) and mate. You could get a "bluenose" (Bb,dd) or a "rednose" (bb,Dd) or a "liver color" (bb,dd) or a "blacknose" (Bb,Dd)... B=Black b=brown D=Full Expression of pigment d=diluted expression of pigment (letters in CAPS are dominant genes)