Nn/showgirl single gene ~question~

[apc]

I have two showgirls that hatched out without the naked neck. Would this make them single gened for the nn gene? How do you make a double nn gene then?

 

[Cuban Longtails]

Niet, that means they are not carrying the gene at all. A single gene gives a bow tie on the neck, a double dose gives a very sparse to no feathers all the way down.