I have two cock Gouldians both "Dilute" and one with a red head and one with a yellow (orange) head, (both purple breasted).
So If have digested all this information...
My Red Head Dilute Purple Breast Cock:
has one "green" Z and one "yellow" Z
has at least one "Purple" C and either White or Lillac C or could be DF for purple
at least one of the Z's also contain the Red Head gene possibly both (and since Yellow head is not on the sex chromozomes it's possible he could carry one yellow head gene? [if he had two yellow head gene's that means he'd be a yellow head correct?] )
My Yellow Head Dilte Purple Breast Cock:
Has one "green" Z and one "yellow" Z
has at least one "Purple" C and either White or Lillac C or could be DF for purple
at least one of the Z's also contain the Red Head gene for yellow head to be expressed
Must be DF for yellow head because it's a recessive trait (correct?)
Now let me try to tackle my two hen's. I have two green/purple hens one with red head and one with yellow head.
So both hen's can only be SF for green body which is a dominate trait, so all male offspring from these hens will always have the "green" Z ?
They could be DF or SF for purple chest since it is dominate
The Red Headed Hen's Z must be red since she is expressing the red head, so I automatically know that she's got a "RED head Green Body" Z gene ?
The Yellow Headed Hen's Z must also be red since Yellow head's can only express it when the Red Z is there. So this birds Z should also be "Red Head and Green Body". The difference here is that she is DF for yellow head (not sex linked).
WHEW, that's a lot of typing
Anyway, I hope I have the basic understanding down. If not PLEASE correct me so that I don't start screwing up my record keeping
