Basic Color Genetics: Black and Black Tort

Black tort is the non-extended color of black.

As we have learned from the previous posts of: 
Northern California Angora Guild: Basic Color Genetics: Black and Chestnut Agouti (ncag.blogspot.com)
Northern California Angora Guild: Basic Color Genetics: Black and Blue (ncag.blogspot.com)
that black color genes are 
aaB-C-D-E-
The E is the extension gene that allows the black color to cover the entire body. 
This photo is a young black doe Chu's LaNelle. 

This is also black buck Chu's Donovan.   One can see the lighting could affect the color of the photo.   

What if a rabbit in the "black gene B family" does not have an E gene?  Instead it has the recessive e genes, ee.   The black color is not allowed to be spread to the rest of the body, the black only appears on the points.   The rest of the body is beige or tan.   We have a black tort.   Here is a junior black tort English Angora.   The color genes of a black tort is 
aaB-C-D-ee

It is still in the "black gene family", it is still a full colored rabbit, it is still a non-dilute.   The only difference is the non-extension recessive gene ee that restrict the black to the points.   If it were a non-wool breed, you'll see the darker color on the feet.  However with the English Angora wool, the most observable dark colors are on the face and the ears only.   The color of the wool is usually more orangey when junior but turns lighter when the wool grows.  This is black tort senior doe Chu's Annisha.