Single comb x Rosecomb = ?

[shelleyb1969]

If I breed a single comb rooster to a rosecomb hen, will I get chicks with both types of combs? Or does the rooster carry the dominant gene for comb type?

 

[Msbear]

You will get both... I think one is dominant. ...I think rosecomb so you will get more of those.

 

[shelleyb1969]

Quote:
Thanks!

I was hoping that someone experienced with rosecombs would chime in here.

I know I've read that a lot of folks keep single combs with their rosecombs due to fertility issues. I have rosecomb hens, but no roo...so I wasn't sure if the rooster was dominant for the comb type. So with chickens, it boils down to dominant TRAITS themselves and the sex of the bird doesn't matter?

 

[Sonoran Silkies]

If the bird with a rosecomb has two copies of the gene, all offspring will have rosecombs. If the bird with a rosecomb has one copy of the gene, half will have rosecombs and the other half single combs.

 

[Sonoran Silkies]

Forgot to say, gender makes no difference.

 

[shelleyb1969]

Quote:
Thanks so much, Sonoran! Both the father and mother of my hens were rosecombed...so does that make my hens carriers of 2 copies of the gene? Sorry for my ignorance with the whole genetics thing.

 

[nzpouter]

Quote:
Thanks so much, Sonoran! Both the father and mother of my hens were rosecombed...so does that make my hens carriers of 2 copies of the gene? Sorry for my ignorance with the whole genetics thing.

not necessarily... your hen can be carrier of 1 or 2, breeding test is the only way to find out.

your hen could be RRpp or Rrpp.

 

[miss heny]

you will at least a 50 50 chance for both

 

[Sonoran Silkies]

Quote:
Thanks so much, Sonoran! Both the father and mother of my hens were rosecombed...so does that make my hens carriers of 2 copies of the gene? Sorry for my ignorance with the whole genetics thing.

not necessarily... your hen can be carrier of 1 or 2, breeding test is the only way to find out.

your hen could be RRpp or Rrpp.

Let's say one of the parents carries two copies and the other has one. Alll the birds will have rose combs; half will carry only one copy of the gene. (And for what it's worth, an RR male has reduced fertility--not so with females or an Rr male).

If both parents carry one copy, 25% will not have rose combs, 75% will have rose combs, but only a third of those (25% of all chicks) will have two copies.