Homozygous Tobiano -- Bear Paw

It is believed to be embryonic lethal, yes. This means that a embryo that is WW is not viable, and will terminate. It is not lethal like frame, where the foal is born and then subsequently dies.

Oh dear Lord, I have suddenly and forever after fallen in love with THE perfect dream horse. It's almost a religious experience

Be glad he at least know that there are no Albino horses. My teacher told us that Cremello was just a made up color that breeders invented so they didn't have to call their horses Albino. He was like "those people breeding buckskins started getting Albino horses. No one wants to buy an Albino horse so they decided to make up a fancy name for them" I tried to explain that it makes tons of sense that the people breeding for buckskin would end up with some Cremello horses and both colors are caused by the cream gene, but he insisted Cremello isn't a real color *headdesk*
My other teacher repeatedly told me I was wrong when I tried to explain the difference between the different Overo patterns. She insisted there is just Tobiano and Overo and told me if I didn't believe her to go try to enter a Paint show (or something) and I'd see that there are only Tobiano and Overo class.
She also called me out, basically making fun of me for 'not knowing what bay is' because I was calling horses brown, that she considered bay (trust me, they're brown ;D )

Almost makes me want to pay to have a bunch of horses out here tested, just to prove them wrong.
I just let it go though and then post links to accurate information on my facebook so any of my classmate that are interested can educate themselves.

You guys make me never want to take a genetics class.

Mine is just a general Horse Evaluation class. Mostly focused on conformation (which thankfully my instructors are pretty well versed in). But we did touch on color briefly. If it were a genetics class I probably would've been more vocal about what I know, but as that isn't the main focus of the class, I didn't really say much.

Maybe he's talking about mapping? Henny has both ink spots and mapping, and I know for a fact he's heterozygous tobiano. He also has some "roaning" on his neck but that's the only place he has it. It's barely noticeable in his winter coat, there's are all from this summer when he was only 4 months old and had just shed out his foal coat. I have heard of people basing mapping on being homozygous for tobiano. But really, there is no phenotypic difference between hetero and homo tobiano, like there is no phenotypic difference between hetero and homozygous black. Henny MAY be homozygous black, but I would have to get him tested.

Side Note: These pictures make me miss my tiny baby!! They grow up so fast.

That's the other word that I was looking for! Mapping, another word for haloing, which is the "roaned" ring around a coloured area.

Nope. I brought up mapping to him too and he looked at me like I was crazy. Apparently a lot of people sent him pictures and he said thanks, but he hasn't posted any even though he said he would. I don't think he even knows what he wants. Lol