Does anyone know?

[Ryder]

Just to make sure Im am doing an expierement on gentics so

I am breeding a rooster that is 50% black gentics and 50%cuckoo gentics but only show cuckoo side but a dark cuckoo color

and I am breeding him to a 100% black hen so the offsprings will be 75% black and 25% cuckoo

Now will the chicks be cuckoo or black

The reason I ask because some say half will be black and the other half will be cuckoo becasue the cuckoo gentics is strong and some say that they will all be black and some say they all will be cuckoo becasue of the strong gene

 

[sylviethecochin]

Half will be barred, and half won't. Explanation below.

Barring/cuckoo is sexlinked. That means that the hen can only posses one copy of the gene for it.

So the rooster has one copy of barring, and one copy that isn't barred (Br/br). Half his offspring will inherit barring (Br) and half won't (br)

The hen is solid. She has one copy of the gene that isn't barring, and then just a blank space in her genetic code (female birds have fewer genes than males do. It's the opposite with mammals) anyway, genetically, she's (br/-) Half of her offspring will inherit a gene that isn't barred (br), and half (the pullets) will inherit nothing (-)—the missing dna that makes them female.

So the rooster will pass on barring to half of his offspring, and they won't inherit barring from their mother. (Br/br) or (Br/-) They'll be single-barred, or dark with barring, like he is.

The half that inherit the non-barred gene from both the father and mother will be solid-colored. (br/br) or (br/-)

Interestingly, if you cross a barred hen with a solid rooster, you get barred males and black females, as shown in this punnett square:

 

[ejtrout31]

Wow How do you know so much

Half will be barred, and half won't. Explanation below.

Barring/cuckoo is sexlinked. That means that the hen can only posses one copy of the gene for it.

So the rooster has one copy of barring, and one copy that isn't barred (Br/br). Half his offspring will inherit barring (Br) and half won't (br)

The hen is solid. She has one copy of the gene that isn't barring, and then just a blank space in her genetic code (female birds have fewer genes than males do. It's the opposite with mammals) anyway, genetically, she's (br/-) Half of her offspring will inherit a gene that isn't barred (br), and half (the pullets) will inherit nothing (-)—the missing dna that makes them female.

So the rooster will pass on barring to half of his offspring, and they won't inherit barring from their mother. (Br/br) or (Br/-) They'll be single-barred, or dark with barring, like he is.

The half that inherit the non-barred gene from both the father and mother will be solid-colored. (br/br) or (br/-)

Interestingly, if you cross a barred hen with a solid rooster, you get barred males and black females, as shown in this punnett square:

 

[sylviethecochin]

Wow How do you know so much

Love biology, follow The Moonshiner, read for fun (love this site) but I admit that most of the credit has to go to this tool that I found a few years back, and which gave me the foundations upon which to build.

If you're interested, I recommend bookmarking both sites and studying them in your spare time.

 

[The Moonshiner]

Looking for different answers then you got when you posted this same subject before?
https://www.backyardchickens.com/threads/question-about-gentics.1284177/

 

[The Moonshiner]

Love biology, follow The Moonshiner, read for fun (love this site) but I admit that most of the credit has to go to this tool that I found a few years back, and which gave me the foundations upon which to build.

If you're interested, I recommend bookmarking both sites and studying them in your spare time.

What a great answer.

 

[sylviethecochin]

What a great answer.

Not to toot your own horn or anything, eh?

 

[The Moonshiner]

Not to toot your own horn or anything, eh?

It's just always cool if I find out someone takes the time and interest to listen to something im saying.

 

[toredano]

I am super interested in genes and coloration of different feathered friends. BUT.. really not smart enough to retain anything , really.I just think most is the same as in horses and anything that has a color variation? We all know what are dominant colors are,right? But genetics and lethal whites are all to consider.I learn so much. Thank you

 

[sylviethecochin]

I am super interested in genes and coloration of different feathered friends. BUT.. really not smart enough to retain anything , really.I just think most is the same as in horses and anything that has a color variation? We all know what are dominant colors are,right? But genetics and lethal whites are all to consider.I learn so much. Thank you

The human brain is an amazing thing, and you're really not giving yourself enough credit. One of the main problems people have trying to learn genetics is that they don't understand the background theory. I highly recommend reading this and just mulling it over until you understand it. Then just keep reading comments and articles about genetics and picking things up as you go along.

It's like learning a new language. First you learn the rules and some of the vocabulary, but then the best way to learn is not to study, but to begin listening to simple sentences, and then to start participating in conversations with someone knowledgeable.