curious to know if it’s possible to tell what mixed with

[nicalandia]

And that still didn’t exactly answer your question. Yes, the barring gene is carried on the X chromosome.

Chickens lack XY sex chromosomes, please try to use the proper nomenclature(ZZ or ZW)

 

[Finnie]

Chickens lack XY sex chromosomes, please try to use the proper nomenclature(ZZ or ZW)

On very rare occasions I run across people using the Z and W terminology, and it may be more technically correct, but since X and Y is more commonly used, it just seems to work better for me, and many other people

I am curious though, so I might just google this question. I always thought the X and Y chromosomes in mammals were named because they are actually X-shaped and Y-shaped. I did not know they were shaped differently in birds. I wonder what their actual shape is (in birds).

 

[nicalandia]

On very rare occasions I run across people using the Z and W terminology, and it may be more technically correct, but since X and Y is more commonly used, it just seems to work better for me, and many other people

I am curious though, so I might just google this question. I always thought the X and Y chromosomes in mammals were named because they are actually X-shaped and Y-shaped. I did not know they were shaped differently in birds. I wonder what their actual shape is (in birds).

When talking about chicken genetics I am as technically correct as I can be. and no they don't have the letter Z or W shape, but the Avian ZW and Mammalian XY are different from each other.

 

[Finnie]

Avian ZW and Mammalian XY are different from each other.

Thank you, that is interesting. I think I will look that up some more.

 

[nicalandia]

Thank you, that is interesting. I think I will look that up some more.

Most people think That The W Allosome has no meaningful genes, but recently scientists found a mutation That is responsible for the formation of ovaries on that W allosome

 

[NatJ]

On very rare occasions I run across people using the Z and W terminology, and it may be more technically correct, but since X and Y is more commonly used, it just seems to work better for me, and many other people

Is is MUCH less confusing if you stick with the right letters, because they behave differently.

X and Y: females are XX, males are XY. (What we're used to seeing in mammals, including humans.)

Z and W: males have ZZ, females have ZW.

So if you talk about an X chromosome, you know that the creature with two of them is a female, and the creature with only one is a male (who also determines the sex of the offspring by which chromosome he passes on.)

If you talk about a Z chromosome, you know the creature with two of them is male, and the creature with only one is female (and she determines the sex of her offspring by which chromosome she gives them.)

The ZW system in chickens makes sexlinked traits work backwards, as compared with sexlinked traits in people.