For those who are confused: w gene telling you what the color is. The b gene is telling you if the w gene will be seen or not. So w sets the color, the b gene is the “light switch” for the w. Because this is an example of recessive epistasis, the only time the w will be turned off is if you have bb. Cause the Bb means that the color of the w gene will be deposited. wwbb means that the ww is not going to be expressed. WwBb (for the f1) means that the Ww makes it white and the Bb is allowing the white pigment to be expressed.
It’s Dominant epistasis II which tells us that the dominant gene of one gene hides the effects of dominant allele of the other gene. In this case, A is epistatic (masks) to B.
bb tells you whether the w genes will be expressed or not. So basically even though it should be brown, since the bb is there it’s turning off the pigment of the ww gene
So w gene telling you what the color is. The b gene is telling you if the w gene will be seen or not. So w sets the color, the b gene is the “light switch” for the w
It’s not autosomal dominance we’re talking bout. The w gene sets the color the b gene is the one allowing the w to be expressed or not. So bb is the off switch and Bc is the on switch. So Ww is white, and Bb is the on switch for that w gene
For those who are confused: w gene telling you what the color is. The b gene is telling you if the w gene will be seen or not. So w sets the color, the b gene is the “light switch” for the w. Because this is an example of recessive epistasis, the only time the w will be turned off is if you have bb. Cause the Bb means that the color of the w gene will be deposited. wwbb means that the ww is not going to be expressed. WwBb (for the f1) means that the Ww makes it white and the Bb is allowing the white pigment to be expressed.
This is terrific.
Great work
why did the dominant W overpower the dominant B for the first 9 of the ratio?
It’s Dominant epistasis II which tells us that the dominant gene of one gene hides the effects of dominant allele of the other gene. In this case, A is epistatic (masks) to B.
Please, I don't get that last part
bb dominates over ww?
Why should bb be expressed over ww?
Please explain further
Check out shomu’s biology dominant and recessive epistasis for a better explanation
I believe this is an example of recessive epistasis, the bb would overpower ww no matter what
bb tells you whether the w genes will be expressed or not. So basically even though it should be brown, since the bb is there it’s turning off the pigment of the ww gene
So w gene telling you what the color is. The b gene is telling you if the w gene will be seen or not. So w sets the color, the b gene is the “light switch” for the w
why would F1 be white and not brown, there’s a capital B which is brown?
It’s not autosomal dominance we’re talking bout. The w gene sets the color the b gene is the one allowing the w to be expressed or not. So bb is the off switch and Bc is the on switch. So Ww is white, and Bb is the on switch for that w gene