Jayd Posted June 19, 2012 Share Posted June 19, 2012 This will be my last thread on this subject. The point I was trying to make was: Any two "tiels can produce wonderful combination. Our Hammy,[Orange-cheek] and Pretty Mama,[Cinnamon] gave us, a White-faced-Lutino, a Cinnamon-Pied, and a Fawn. Each clutch they gave us assorted babys. I mentioned in other threads that a male cockatiel inherits one X chromosome from his father (let's call this chromosome "X1") and the other from his mother ("X2"). Each of these chromosomes can carry sex-linked mutations. The sex-linked mutations that a male inherits from his father will occupy X1, and the ones he gets from his mother will occupy X2. The important thing to remember here is that the mutations on each X chromosome are always inherited together. The mutations on X1 will travel together to the next generation (likewise for the ones on X2). Let's say that a lutino male and a cinnamon pearl female have one male chick. One of the chick's X chromosomes (call it "X1") will carry lutino (from his father), and the other ("X2") will carry cinnamon and pearl (from his mother): X1: lutino X2: cinnamon pearl If this male is mated to a grey female, these are the possible results: Male chicks: 50% grey split to cinnamon pearl (if they inherit X2) 50% grey split to lutino (if they inherit X1) Female chicks: 50% cinnamon pearl (if they inherit X2) 50% lutino (if they inherit X1) Note: It is not possible for any of the female chicks to be just pearl, just cinnamon, or lutino pearl. She is limited to the combination of mutations on the single X chromosome she inherits. Link to comment Share on other sites More sharing options...
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