A breeding concern is that dogs who inherit
the merle gene from both parents can be born deaf or blind.
Not exact matches
Dogs that receive one copy of the
gene from each
parent are homozygous for
merle.
The way genetics work is that a puppy inherits one colour
gene from each
parent, this means that puppies in a
merle x
merle litter could be normal
merles (Mm), non-
merles (mm) or double
merles (MM).