Sigh. I've tried educating people on the yellowface/goldenface gene for awhile. People still get it all wrong. Here we go again...
isaac, i think what you have is a goldenface type 2 and a blue. As I will explain later, the genotype of your hen is GfB1. The male is either B1B1 or B2B2.
YES, You *can* get a type 1 from a type 2 bird. How do I know it? First, it works out genetically. Second, I've bred a type 1 goldenface from a type 2 bird before.
There are five genes at the locus we are talking about. Imagine the locus as a box and it can hold 2 balls, but there are 5 types of balls we can place in there. The balls are..
Green- this is a dominant gene and will make the bird a complete yellow base
Blue1- this is a blue gene that when combined with another Blue1 gives a blue bird
Blue2- this is a blue gene that combined with another Blue2 gives a blue bird
Goldenface- this is the goldenface gene
Yellowface- this is the yellowface gene
The tricky part is what happens with each of the combinations? Double factor Blue1 gives a blue bird, and Double factor Blue2 give an identical blue bird. The tricky part is that a Blue1-Blue2 bird will not look blue put have a very very pale Yellowface (called a Creamface).
Now for other ones. A doublefactor Goldenface and a doublefactor Yellowface look like a Goldenface/Yellowface Type 1, respectively. BUT, a Goldenface-Blue1 and a Yellowface-Blue1 look like type 2's (respectively). The Blue1 gene is what causes the massive yellow spillage (note, it is the Blue1 gene and not the Blue2 gene).
All other combinations look like type 1, it is solely when a Blue1 gene is mixed with either the Gf or Yf that you get the yellow spillage and a type 2 bird.
Is it possible to get a type 1 bird from a type 2 bird?
Answer: Yes. I'll give the example that comes to mind, one where I bred my birds. My hen was a Goldenface Type 2 (GfB1) and my male was a Yellowface Type 2 (YfB1). A daughter was born of Goldenface Type 1, getting her Gf gene from her mother, a Yf gene from her father, and thus looking Goldenface Type 1.
Is Type 2 dominant over type 1?
Type 1 and Type 2 are not genes, they are phenotypes! There is no type 2 gene or type 1 gene, there are only the 5 genes I have listed above. And the only one out of those you can truly say has a dominant/recessive relationship with the rest is the green gene which masks all the others. The other combinations are more complicated and have to be looked at individually.
...whew that was a lot.