What happens when you cross dominant white with black?

[Cheekychook12]

That's really weird.
I think he might be a mosaic, just both parts have the same color but different feather textures. Do Silkied Pekins exist? Silkied Cochin bantams (the equivalent to Pekins everywhere except UK and Australia) exist but that doesn't mean they were imported.
Recessive white can occasionally have colored feathers pop through but I've never seen a fully colored feather. Still, Pekin bantams are never dominant white so I expect he is Recessive White nonetheless, unless he has Silkie ancestry. (Silkied Cochins don't have Silkie ancestry, it popped up spontaneously.)
I expect his chicks would probably be black barred but really any pattern could be hiding under that white.

Is mosaic the same as chimera? Twin DNA? That was a theory I had
Silked pekins do exist but aren’t very common
It is maybe possible he has silkie ancestry
His colour is leaky with a few patches of brown sprinkling and of course the barring, so I thought dominant white because it’s known to be leaky
I’m very excited to find out what kind of chicks he’ll throw though, what hens should I pair with him to best see his colours
These are the girls I have
The white looking hen is lavender partridge

 

[Amer]

Is mosaic the same as chimera? Twin DNA? That was a theory I had
Silked pekins do exist but aren’t very common
It is maybe possible he has silkie ancestry
His colour is leaky with a few patches of brown sprinkling and of course the barring, so I thought dominant white because it’s known to be leaky
I’m very excited to find out what kind of chicks he’ll throw though, what hens should I pair with him to best see his colours
These are the girls I have
The white looking hen is lavender partridge

Mosaic can mean twin dna but it can also mean a somatic mutation: his dna might have mutated early in his embryonic development so a lot of his cells have the silkie gene.
Recessive white can also have some flecks come through (just not as big or as many) which is why I'm going to assume a weirdly leaky recessive white for now and not dominant white but he might be dominant white. It's more usual for dominant white to have the fully colored feathers like his barred feather but more usual for recessive white to have the weird stippled feathers.

 

[Cheekychook12]

Mosaic can mean twin dna but it can also mean a somatic mutation: his dna might have mutated early in his embryonic development so a lot of his cells have the silkie gene.
Recessive white can also have some flecks come through (just not as big or as many) which is why I'm going to assume a weirdly leaky recessive white for now and not dominant white but he might be dominant white. It's more usual for dominant white to have the fully colored feathers like his barred feather but more usual for recessive white to have the weird stippled feathers.

I guess I’ll find out, he’s definitely got some stuff hiding underneath it though

 

[Cheekychook12]

Does this chick look split for mottled? It has since lost almost all the spots

 

[Amer]

Does this chick look split for mottled? It has since lost almost all the spots

Yes

 

[Cheekychook12]

Yes

Oh good, I love mottling and we have this guy to breed to them, so with that pairing I’d get 50% with barring, 50% mottling and 25% both

 

[Amer]

Oh good, I love mottling and we have this guy to breed to them, so with that pairing I’d get 50% with barring, 50% mottling and 25% both

Is that your "bottled" one?

 

[Cheekychook12]

Is that your "bottled" one?

Hehe yes it’s Chonky boy

 

[Cheekychook12]

I got a better pic of this guy

 

[NatJ]

You’ll get paint chicks. @NatJ may know some more.

I think it had been covered pretty well by the time I noticed this tag, so I don't have anything to add.