Any guesses on gender of these little ones? 25-day old chicks

[Shady77]

 

[nuthatched]

These two are likely cockerels.

 

[Shady77]

These two are likely cockerels. View attachment 3858244

Thanks and I'm curious that their father was a rose combed rooster and their mother is a single combed hen. How come every female chick is single combed and every male chick is rose combed? Enlighten me please. I have other chicks too.

 

[nuthatched]

Thanks and I'm curious that their father was a rose combed rooster and their mother is a single combed hen. How come every female chick is single combed and every male chick is rose combed? Enlighten me please. I have other chicks too.

I don't know but let me find someone who might.
@NatJ
@dawg53

 

[coach723]

My understanding is rose combs are dominant and single combs are recessive, so more likely to pass on a rose comb. But there are always less likely combinations that do get passed on.
At their age, with those combs being as large as they are, and as much color as they have already, I too would suspect those two are likely cockerels. Time will tell for sure.
Here is an article on rose comb vs single comb. Honestly, sometimes the genetic combo stuff makes me dizzy!
https://www.backyardchickens.com/articles/understanding-the-rose-comb-trait.65576/
And here is another:
https://poultry.extension.org/articles/poultry-anatomy/poultry-genetics-an-introduction/

 

[NatJ]

Thanks and I'm curious that their father was a rose combed rooster and their mother is a single combed hen. How come every female chick is single combed and every male chick is rose combed? Enlighten me please.

It is just a coincidence that the sons got rose combs and the daughters got single combs. If you hatch more chicks from that pair, you will probably get some of each sex with the other comb type as well.

In chickens and other birds, the mother determines which chick is male or female.

Rose comb is caused by a dominant gene.
The mother has a single comb, so she does not have the rose comb gene, which means she cannot give it to her chicks.

The father has one rose comb gene (so he shows a rose comb and can give it to some chicks) and one not-rose comb gene (which he gave to the chicks who show single combs.)