Thanks J.
Naked Neck (Na/Na H+/H+) X silkie (na+/na+ h/h) will give
- all offspring split for h, the recessive silkie gene, so none will have silkie feathering.
- all offspring will be split for Na, the gene for naked necks and display as Naked Necks. They will usually have a "bow tie" and more feathering on their breasts than birds pure for Na.
If the Naked Neck is split for Na (Na/na+), then half the offspring will be as described above and the other half will not carry the gene, thus having full feathering on their necks.
If the Naked Neck should happen to be split for silkie (H+/h), then half the offspring will have silkie feathering.
Put these two together and
- 1/4 will be naked-necked and silkie,
- 1/4 naked-necked and not-silkie,
- 1/4 not-naked-necked and silkie, and
- 1/4 not-naked-necked and not-silkie