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Does that not mean that it’s a regular dominant, because there’s only one copy but it’s still covering the normal feather gene?

The genes that are completely dominant, and the ones that are incompletely dominant, both get called "dominant." In both cases, you can see the effect of the gene when the animal has one copy of it. But incompletely dominant is when you can see a difference if the animal gets a second copy of the gene (like frizzle/frazzle, blue/splash, and so forth.)

Completely dominant genes are ones like rose comb, or not-silkie feathers, or not-lavender color, where you cannot tell which chicken has one copy of the gene and which has two copies, because they look just the same. I think that's also true for your cocker spaniel example, where the one that carries the recessive gene looks just the same as the one that does not carry it.
 
The genes that are completely dominant, and the ones that are incompletely dominant, both get called "dominant." In both cases, you can see the effect of the gene when the animal has one copy of it. But incompletely dominant is when you can see a difference if the animal gets a second copy of the gene (like frizzle/frazzle, blue/splash, and so forth.)

Completely dominant genes are ones like rose comb, or not-silkie feathers, or not-lavender color, where you cannot tell which chicken has one copy of the gene and which has two copies, because they look just the same. I think that's also true for your cocker spaniel example, where the one that carries the recessive gene looks just the same as the one that does not carry it.
Thank you!
 
I have not read through all 6 pages. Apologies. I followed my tag in, and then went to the pics. 😬

1. Black Bantam Cochin pullet
2. EE of some sort - likely cockerel but too early to accurately sex.
3. Silkie mix (possible Silkie/BC) - looks like a pullet, but also too early for accuracy.
4. Black mottled Bantam Cochin cockerel
5. Olive Egger pullet
6. Black mottled Bantam Cochin cockerel
7. Porcelain d'Uccle cockerel.
 
I have not read through all 6 pages. Apologies. I followed my tag in, and then went to the pics. 😬

1. Black Bantam Cochin pullet
2. EE of some sort - likely cockerel but too early to accurately sex.
3. Silkie mix (possible Silkie/BC) - looks like a pullet, but also too early for accuracy.
4. Black mottled Bantam Cochin cockerel
5. Olive Egger pullet
6. Black mottled Bantam Cochin cockerel
7. Porcelain d'Uccle cockerel.
You're all good- the 6 pages are clarifying that no, the barred bird is not a legbar, and talking about genetics and bachelor coops.

Because this is from an 'assorted bantams' from Meyer, I was thinking that the one that looks like a silkie mix could be one of their green queens or sage gems, because those can be crested or non crested, feather legged or no, etc.
 
You're all good- the 6 pages are clarifying that no, the barred bird is not a legbar, and talking about genetics and bachelor coops.

Because this is from an 'assorted bantams' from Meyer, I was thinking that the one that looks like a silkie mix could be one of their green queens or sage gems, because those can be crested or non crested, feather legged or no, etc.
Thanks for the recap!

Oh that makes sense! Could totally be then. First pic makes it look like a Silkie mix. Then the second pic made me second guess that lol. One of those mixes makes much more sense.
 
Thanks for the recap!

Oh that makes sense! Could totally be then. First pic makes it look like a Silkie mix. Then the second pic made me second guess that lol. One of those mixes makes much more sense.
If it was craigslist, I wouldn't question silkie mix, but because it's a hatchery...

Could it be a BC with a weird scruff that will disappear with time? It looks very cochin shaped.
 
Interesting, I was not aware of that. Thank you!
I thought if you crossed a non-frizzled bird to a frizzled bird, it might have some frizzle in it.
No, because a "frizzle" is actually only heterozygous for the frizzling gene, so only half the offspring will inherit it from them.

Frizzling is incomplete dominant. So if a bird carries frizzling it will be phenotypically frizzled.

A bird homozygous for frizzling is a frazzle, however frazzles have numerous health issues like enlarged organs and extremely brottle feathers, so responsible breeders do not breed them.

Frizzle x Smooth = 50% frizzled 50% smooth
Frizzle x Frizzle = 50% Frizzled 25% Smooth 25% Frazzled
Frazzle x Frizzle = 50% Frazzled 50% Frizzled
Frazzle x smooth = 100% Frizzled
Frazzle x Frazzle = 100% frazzled
 

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