Quote:
Originally Posted by YorkyDiva  In the case of these carriers, isn't it true that if you are breeding carriers, that yes 50% of the off spring are carriers, but you don't know which half are carriers? |
That's correct. But if you breed a chocolate Yorkie to a traditional colored yorkie, even though the pups look traditional colored (because they only have one dose of the chocolate gene from the one chocolate parent) 100% of the pups are carriers ... that takes all the guesswork out of who is a carrier and who isn't. The chocolate parent is homozygous for the chocolate gene and passes one copy of the gene onto all it's offspring.