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  1. NatJ

    Some Questions About Egg Genetics in Chickens - Questions About Genetics (Ask questions!)

    The hens are likely homozygous (pure) for the muff/beard gene, so they pass it on to every chick they produce. The chicks are heterozygotes (splits). They have one copy of the muff/beard gene, and one copy of the not-muff/beard gene. If you take those chicks, and breed them to clean-faced...
  2. NatJ

    Some Questions About Egg Genetics in Chickens - Questions About Genetics (Ask questions!)

    There is a dominant gene that causes muff & beard. I don't know if two copies of the gene makes a fuller muff & beard or not. I'm pretty sure there are some genes that can make the muff & beard more or less full, but I don't know any details about them. I just know they must exist, because...
  3. NatJ

    Some Questions About Egg Genetics in Chickens - Questions About Genetics (Ask questions!)

    Yes, he does look like a Barred Rock. He looks like he has two copies of the barring gene (so he must pass it to every chick he sires), and I don't see any reason to think he's got other unexpected genes. So any chick he produces should be black with white barring (possible variants: blue with...
  4. NatJ

    Some Questions About Egg Genetics in Chickens - Questions About Genetics (Ask questions!)

    Was the mother of that cockerel also a Rhode Island Red? If so, the gold in the hackle & saddle feathers could be coming from genes she provided.
  5. NatJ

    Some Questions About Egg Genetics in Chickens - Questions About Genetics (Ask questions!)

    A purebred Barred Rock rooster should not produce a son like that, no matter who the mother was. Two reasons: --the white and black pattern is wrong. A chick from a Barred Rock parent should have MUCH more black. --lack of barring. Any chick with a Barred Rock father should have white barring...
  6. NatJ

    Some Questions About Egg Genetics in Chickens - Questions About Genetics (Ask questions!)

    @The Moonshiner said the father (EE rooster) has 1 silver gene, and 1 gold gene. That means he can give either one to his chicks, so having some silver (white) and some gold (red) ones is not surprising. The silver/gold genes are on the Z sex chromosome. Roosters have ZZ (so two silver, or two...
  7. NatJ

    Some Questions About Egg Genetics in Chickens - Questions About Genetics (Ask questions!)

    If the EE lays colored eggs (blue or green), I would expect either half or all of the daughters to lay blue eggs (or maybe green ones.) Either half or all of the sons should carry the genes for that egg color, which they could pass on to their own chicks. Whether you get colored eggs from half...
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