please explain

[angeldc77]

Can someone please explain how one can end up with a cinnamon ino hen. I thought it was not possible for a female to carry two sex linked mutations, such as a pallidino only being male. I'm just a novice trying to get educated.

Thanks,
Angel

[madas]

Can someone please explain how one can end up with a cinnamon ino hen. I thought it was not possible for a female to carry two sex linked mutations, such as a pallidino only being male. I'm just a novice trying to get educated.

Thanks,
Angel

Hi,

each bird can carry more then one sex-linked Mutation (opaline, ino or pallid, cinnamon, slate and sl edged). But ino and pallid are mutations of the same locus. Means they are multi-allelic. So a female could only carry one of these two alleles (ino or pallid not both) because a female has only one Z-Chromosom. A male has got two Z-Chromosoms and is able to carry two alleles of the ino-locus. Means ino and ino expressed as lutino phenotype, ino and pallid expressed as pallidIno pheneotype or pallid and pallid expressed as pallid phenotype.

greetings.

madas

[Johan S]

But ino and pallid are mutations of the same locus. Means they are multi-allelic.

And if that didn't make sense, think of the genetic code (strings of DNA) being the same as a neighbourhood. All the houses in one street could be considered the sexed-linked mutations. Pallid and ino would thus have the same street address (location/locus), but cinnamon, opaline, slate, etc. would have different street addresses. Since they are living on the same street, they will also be linked to one another, as most good neighbours are. They closer the stay, the tighter the linkage.

[angeldc77]

Ahhhh, I see says the blind man. Many thanks.