Mixed Fry?

Hi, i would love to breed BNs and soon hope to as a friend is willing to give me one of his females, but my question is, would there be a mix of common and albino fry from 2 common parents?

Any help appreciated

Thanks

James

it is possibe but you need to know the genetics of the parents. The current thinking is that the brown gene is dominant. So if you have two brown bristlenose and they both have the ablino gene then you will get some albino fry.

if B is the brown gene and b is the ablino gene then the cross will go something like this

Bb x Bb
|
Gives
|

BB Bb Bb bb <- and this bb is the albino so you can expect to have about 25% albino fry. but the issue is that most common brown bristlenose are BB, not Bb, and if that is the case then its more like this


BB x Bb
|
Gives
|
BB Bb BB BB <- all of which are brown

they should through 1/4 albino fry I think

thanks for all the help, i understand the gene dominance idea now Doug, thanks again

so providing the brown gene is more dominant...if a male brown and female albino bred, would there be about 60% brown and 40% albino fry?

Thanks for the help

James