|Barked: Sun Nov 25, '12 1:57pm PST |
|If both parents were not merle and one puppy that's a 1/4 chance of being double merle. The parents would be heterozygous for it. Merle is an incomplete dominant, and the color patterns it produces is random and sometimes very subtle.
White dogs can also be diluted cream or extreme piebald. Your dog may be DM and extreme piebald. Chihuahuas can come in any color, so it's possible.
they don't know what really is up with the white dobermans. The genetics that are causing it is not understood, though it looks like tyrosinase positive albinism. it's just not typical. There are similar coat patterns in other breeds too, but it's not albino. WD's are just famous for it because it's not desirable for a working dog to be that color, and it was a random mutation (they call it a z mutation) in one bitch.
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