I have a Lav Ameraucana roo/Gold Laced Wyandotte with a rose comb. Since rose comb is dominant, is there still a chance it carries the blue egg gene but has a rose comb?the issue is, that Unlike Rosecomb which is completely dominant gene(meaning you cant distinguish a R/r+ from a R/R) pea comb is NOT completely dominant and you can clearly see(when adults) if they are heterozygous for the pea comb(P/p+)
So you won't get any birds with a pea comb from this cross? I'm confused.The shape of the comb.
A bird with 2 copies will have a small, tight comb. You can also test breed to see whether or not your birds are carrying 1 or 2 copies of the gene, simply breed them to a single combed bird. If your Ameraucanas have 2 copies their offspring will have what some call a "modified" pea comb where the combs basically look like a ugly mix of the two types, sorta like a lump of bubble gum on the birds head. If any offspring are born with a single comb then your Ameraucanas are only carrying 1 copy of the gene.
There is no connection between the blue egg gene and muffs/beards.