Black vs. Chestnut

 

 

 

 

Black is in the self group, the color genetic code is:

aaB-C-D-E-
 

Chestnut is in the agouti group, the color genetic code is:

A-B-C-D-E-


As we can see from the color codes, both are full colored rabbits with black B and extension E genes.   The only difference is in the A series.   Chestnut is agouti and black is non-agouti or self.    We can say that chestnut is the agouti version of black or the black is the self version of chestnut.

Two black parents cannot make chestnut babies because agouti is dominant while two chestnut parents may be able to make black babies depending on whether both parents carry "a" after "A".