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Yes. If the mother has dark skin, and her son has light skin, then crossing the son back to her should give both skin colors, in both genders. So you should expect 25% each of: light-skinned males (they also carry the gene that allows dark skin) dark-skinned males (pure for the gene that...

If the father is pure for light skin (Id/Id), then he passes the dominant gene Id to each chick he sires, and they all show light skin. For a daughter, she has Id on the Z chromosome, and nothing on her W chromosome. For a son, he has Id on one Z chromosome, and id+ from his mother (allows dark...

This one had the Brahma mother, right? I'm thinking the chick has a walnut comb (pea + rose), which would mean it got the rose comb gene from the father-- but based on the photos, it looks like either one could have contributed that. The chick has feathered legs, and the Brahma mother has...

I think he is probably not the father, given the timing, but it's not impossible! Even if he is not the father, the current chick might have gotten a similar mix of genes, if it looks similar.

It could be from bacteria, or just bad luck, or a combination of factors. Having one die early on, one with trouble at hatching, and one that died after it had hatched makes me suspect that there are three different causes, and it's just coincidence that these eggs all came from the same hen...

Given that, it does sound like this one needs more time. Hopefully it goes well. But if it doesn't, you will know that you tried, and it was clearly NOT time to assist further. Sometimes there really is nothing you can do (and the hard part is to tell which times that is!)

I don't really have experience with assisted hatching. I suggest this article: https://www.backyardchickens.com/articles/guide-to-assisted-hatching-for-all-poultry.72886/ It looks like absorbing the yolk, and having the veins recede, can take 24 hours or so. It also looks like it just takes as...

Depending on what comb genes the dark rooster has, he might be able to sire a chick with a single comb, or he might not. So single comb makes me suspect the bantam, but unless we learn more about the dark rooster's comb genes, we cannot rule him out as a possible father. I completely missed...

Based on the comb, it's likely (but not certain) that the sneaky bantam was the father of that chick. My guess matches yours, that it probably died about the time it was supposed to start absorbing yolk, so yes probably a few days ago.

Yes, it's really hard when you have so much going on. I did not learn this genetics stuff overnight. I've been picking up bits here and there for several decades, although I think my knowledge did take a big jump when I once had a few months with less going on. But intermittent interest and...

I knew it was a bunch to dump on you at once :lol: It's funny how the same thing can be clear or confusing, just by getting explained differently. I've also noticed the "best" explanation varies from one person to another. Of course my explanations are based on how it makes sense to me ;)...

That seems likely, but not certain. Yes, clean legs strongly suggest the clean-legged rooster was the father. But since the sneaky bantam has lightly feathered feet, he might also have the genes for clean feet, so he might be able to sire clean-footed chicks (with light legs). I don't remember...

In those cases, if the father was Ayam Cemani (two copies of fibro, two copies of id+ that allows fibro to show), then he would give each chick one copy of fibro, and one copy of id+ Each chick would get one copy of not-fibro from the mother, which is recessive and doesn't matter here...

You can only sex chicks by genes on the Z sex chromosome, or by traits that look different in male vs. female even when they have the same genes. (Examples of those traits: breast color in duckwing-colored chickens, comb size & color, pointy saddle feathers in males but not in females.) The...

Yes, that's what I was expecting, but that may have explained it better than I did. No. A chick never receives "two copies" of anything from the mother. The way sex chromosomes work in chickens: A rooster has sex chromosomes ZZ. He gets one from his mother, and one from his father. Every...

On my desktop computer, I just click inside the quote and start deleting stuff. I don't have any idea if it works the same way on other kinds of devices. Now THAT looks like a walnut comb! I'm not sure whether it's a cockerel, but that's what I meant about walnut combs being wide at hatch! I...

The foot feathering makes it seem more likely that the sneaky bantam is the father, but of course that's not a certainty. I agree. I've seen some people put photos in spoilers. I've never done it, so I'm not quite sure how. I'm always curious to see photos, but I don't know if I'll spot...

It might be. The photo wasn't at the best angle to tell. Yes, it is quite a puzzle! That one may become more obvious as it grows up, or it may not. Does the sneaky bantam have feathered or clean feet? I think I see some feathers on the feet of the Ameraucana/Silkie mix rooster. The chick's...

I think the photos must have been added after you answered. I saw things in them that I did not realize from the text description. Yes.

Yes, those help a lot! Yes, if their mother is the Braekel/Sexlink hen. I can see in the photo that she has the Dominant White gene, which turns all black to white. It doesn't matter if that "black" is diluted to blue or splash, it still turns white. So if the Braekel/Sexlink is the mother...