Genetic questions!

[Gigachad poultry]

This is the breeding flock, there are like 8 different breeds up in the hens genetics and the rooster carries the duckwing gene and so so half the hens

 

[Amer]

Why would this be? His some of the hens that could have be his mom both carry Duckwing and his dad carries a copy the duckwing gene meaning that the offspring can inherit two copies of the recessive gene instead of the dominant one, Rr x Rr = 25% rr right?

He didn't inherit duckwing from both parents because otherwise he would have the duckwing pattern with the white wing triangle.

Would this hen be Birchen then? View attachment 4130379
And what about this one? View attachment 4130380
This one doesn't look all that Birchen to me...View attachment 4130381
This one however does look Birchen View attachment 4130382

Those are all Birchen based. They have additional genes that add pattern and they are probably split based. Sebrights are pure Birchen base, they have other genes on top of that to add more color.

 

[NatJ]

Rr x Rr = 25% rr right?

Yes, Rr x Rr = 25% rr
But it also gives 25% RR and 50% Rr, which means 75% show R.

I don't think R is the actual abbreviation for any of the genes involved, but the inheritance pattern is the same regardless.

If both parents carry the recessive gene, you expect it to show up in about 25% of chicks. But you expect the other 75% of chicks to show the dominant trait. Your cockerel is apparently showing the dominant trait (Birchen), and we don't know whether or not he carries the recessive trait (Duckwing).

 

[Gigachad poultry]

Yes, Rr x Rr = 25% rr
But it also gives 25% RR and 50% Rr, which means 75% show R.

I don't think R is the actual abbreviation for any of the genes involved, but the inheritance pattern is the same regardless.

If both parents carry the recessive gene, you expect it to show up in about 25% of chicks. But you expect the other 75% of chicks to show the dominant trait.

I don't though, I'm simply examining the offspring from the hatch

Your cockerel is apparently showing the dominant trait (Birchen), and we don't know whether or not he carries the recessive trait (Duckwing).

His dad was a silver Leghorn so yes he 100% carries a copy of the Duckwing gene

 

[NatJ]

I don't though, I'm simply examining the offspring from the hatch

If the mating was from parents that each show the dominant gene and carry the recessive gene, then 25% of chicks are expected to show the recessive trait and 75% are expected to show the dominant trait. When I said "you expect" I was being careless with my choice of words, and did not really mean that you personally had that expectation.

His dad was a silver Leghorn so yes he 100% carries a copy of the Duckwing gene

Your example of Rr x Rr = 25% rr made me forget about what breed the father was.
That example is for parents that each show the dominant trait but carry the recessive trait.

But a Silver Leghorn would be showing the recessive trait. If the hens show the dominant trait and carry the recessive one, the inheritance pattern would be:
rr x Rr = 50% rr and 50% Rr
So the expectation would be half of chicks showing Duckwing and half of chicks showing Birchen, if the father is Duckwing and the mother looks Birchen but carries Duckwing.

Actual genetic abbreviation would be e+ for the recessive gene (Duckwing) and R^R for the dominant gene (Birchen)
e+/e+ x E^R/e+ = 50% e+/e+ and 50% E^R/e+

 

[RoostersAreAwesome]

I don't though, I'm simply examining the offspring from the hatch

His dad was a silver Leghorn so yes he 100% carries a copy of the Duckwing gene

Is the father a silver leghorn or a silver leghorn mix?

 

[Gigachad poultry]

Is the father a silver leghorn or a silver leghorn mix?

Pure Silver Leghorn rooster crossed to an Olive Egger hen (Maran x Legbar)

 

[Gigachad poultry]

If the mating was from parents that each show the dominant gene and carry the recessive gene, then 25% of chicks are expected to show the recessive trait and 75% are expected to show the dominant trait. When I said "you expect" I was being careless with my choice of words, and did not really mean that you personally had that expectation.

Ohhhhhh my bad lol

Your example of Rr x Rr = 25% rr made me forget about what breed the father was.
That example is for parents that each show the dominant trait but carry the recessive trait.

Hmm... So would it be different then since none of the hens have the Birchen trait?

But a Silver Leghorn would be showing the recessive trait. If the hens show the dominant trait and carry the recessive one, the inheritance pattern would be:
rr x Rr = 50% rr and 50% Rr
So the expectation would be half of chicks showing Duckwing and half of chicks showing Birchen, if the father is Duckwing and the mother looks Birchen but carries Duckwing.

Vadakor would be Rr then, he got Birchen from his mom and Duckwing from his dad

Actual genetic abbreviation would be e+ for the recessive gene (Duckwing) and R^R for the dominant gene (Birchen)
e+/e+ x E^R/e+ = 50% e+/e+ and 50% E^R/e+

It's like math but more fun! And more confusing...

 

[Gigachad poultry]

This one's probably got that Birchen gene but as it ages it looks so similar to Mottled which I thought was interesting!

 

[Gigachad poultry]

Isn't it true that when different genetics are crossed there's a chance if creating something entirely new? Genetic recombination and all?