Sex- linked Information

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Hi - I'm just wondering wether a French Wheatan Maran roo with Dark Barred Plymouth Rock hens would produce sex link chicks?
Thanks
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https://www.backyardchickens.com/forum/viewtopic.php?id=261208

Tim

ive read that many times and it dont help me at all. its to confusing for me.

I'll try. Genes normally come in pairs. The chick normally gets one gene from its father and one from its mother to make up a pair. A rooster is a generous sort. He gives a copy of all his genes to all his children, male or female. The hen, on the other hand, is stingy. She gives most of her genes to all her children, but there are a certain few that she keeps from her daughters and only gives to her sons. So her daughters get short-changed. Instead of a pair of those specific genes, the daughters wind up with only one from their father and none from her mother.

Some of these genes the sons get from their mother are dominant over the ones the daughters only get from her father and can visibly be seen at hatch on some chicks. For example, if the father gives a gold gene to his sons and daughters, and the mother gives a silver gene to her sons but not her daughters, the silver gene the son gets will cause the chick to have yellow down. The son also got a gold gene from his father to pair with the silver gene from his mother, but the silver trumps the gold and you see yellow down. The daughters are short changed and don't get the silver gene from their mother. She is too stingy to hand it out to her daughters. Since the daughter only got a gold from her father, the daughter will have reddish down. The exact shade of red will vary depending on what other genes are present, but that is what makes a red sex link.

These chicks are called sex link chicks because the mother withholds certain genes from her daughters purely because of their sex. There are genes other than silver she does this with. The ones we normally use for sexing chicks at hatch are the gold-silver gene, barred or not barred, and a certain fast or slow feathering gene.

Either a Partridge or a Buff rooster could probably be used to make a red sex link or black sex link, but neither Partridge or Buff has the right genes for the hen to be the mother of a sex link. So, no, crossing a Partridge with a Buff will not give a red or black sex link. The mother does not have the right genes.

By the way, by giving or withholding those sexlinked genes, the hen is the one that determines the sex of the chick. There are a lot of other sex-linked genes involved too but normally you can't see the effect at hatch. Hope this helps a little bit.
 
Quote:
ive read that many times and it dont help me at all. its to confusing for me.

I'll try. Genes normally come in pairs. The chick normally gets one gene from its father and one from its mother to make up a pair. A rooster is a generous sort. He gives a copy of all his genes to all his children, male or female. The hen, on the other hand, is stingy. She gives most of her genes to all her children, but there are a certain few that she keeps from her daughters and only gives to her sons. So her daughters get short-changed. Instead of a pair of those specific genes, the daughters wind up with only one from their father and none from her mother.

Some of these genes the sons get from their mother are dominant over the ones the daughters only get from her father and can visibly be seen at hatch on some chicks. For example, if the father gives a gold gene to his sons and daughters, and the mother gives a silver gene to her sons but not her daughters, the silver gene the son gets will cause the chick to have yellow down. The son also got a gold gene from his father to pair with the silver gene from his mother, but the silver trumps the gold and you see yellow down. The daughters are short changed and don't get the silver gene from their mother. She is too stingy to hand it out to her daughters. Since the daughter only got a gold from her father, the daughter will have reddish down. The exact shade of red will vary depending on what other genes are present, but that is what makes a red sex link.

These chicks are called sex link chicks because the mother withholds certain genes from her daughters purely because of their sex. There are genes other than silver she does this with. The ones we normally use for sexing chicks at hatch are the gold-silver gene, barred or not barred, and a certain fast or slow feathering gene.

Either a Partridge or a Buff rooster could probably be used to make a red sex link or black sex link, but neither Partridge or Buff has the right genes for the hen to be the mother of a sex link. So, no, crossing a Partridge with a Buff will not give a red or black sex link. The mother does not have the right genes.

By the way, by giving or withholding those sexlinked genes, the hen is the one that determines the sex of the chick. There are a lot of other sex-linked genes involved too but normally you can't see the effect at hatch. Hope this helps a little bit.

THANKS!! that was a very good explanation. i understood all of it lol. thank u!! i just have one more question. What if u used a california grey hen to make a black sex link. would that work? shes barred but idk if it works the same. cuz a grey is a cross its self
 

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