FINCHforum

Posted: **Tue Oct 09, 2012 9:57 pm**

Hey guys,

The topic sentences looks obvious but I'll explain in more details. I have a normal gray female zebra finch and a black cheek male. What colour mutation would I get for their off spring. I don't know if the black cheek is dominance, co-dominance or recessive. So in summary, NG female + BC male = what colour mutation of the offspring.

Posted: **Tue Oct 09, 2012 10:31 pm**

you will get splits... 100% Normal split to Black cheeked

the young will look normal but the tears will be thicker.

Refer to efinch: http://www.efinch.com/species/bczeb.htm

Posted: **Wed Oct 10, 2012 6:02 pm**

These young, will carry one gene (Black Cheek). You need two black cheek genes to display black cheek.

Mother/Father
N/BC = Normal offspring

So, if they were paired with a black cheek, 50% (on average) of their offspring should be black cheek. The other 50% would have only one black cheek gene.

Infant female split BC/Father BC
BC/BC = BC offspring
N/BC = Normal offspring

If you paired them with another bird that was split to black cheek, only 25% of the offspring would be black cheek.

Female split BC/Male Split BC

N/N = Normal offspring
N/BC = Normal offspring
BC/N = Normal offspring
BC/BC = BC offspring (got two BC genes)

Sometimes you can see a bit of black in a splits cheeks. Faint or smeared. Not always. I see this the most in CFW splits.

FINCHforum

Black Cheek Male + Normal Gray = ???

Black Cheek Male + Normal Gray = ???

Re: Black Cheek Male + Normal Gray = ???

Re: Black Cheek Male + Normal Gray = ???