Double Hets, Double Homo

[Griggs2121]

Am I correct that the mix "ap" would be a pastel in appearance and be 100% het for albino.

No... doubles are notated on different alles.. its either aa, or Na for the albino gene, and the pastel is on a completely different alle.

Ok, in the Albino x pastle example, am I still correct that if you bred an Albino with a Pastel you get a Pastel in appearance, and het for Albino? If so, how would you illustrate that with letters?

[tigerlily]

Ok, in the Albino x pastle example, am I still correct that if you bred an Albino with a Pastel you get a Pastel in appearance, and het for Albino? If so, how would you illustrate that with letters?

You would get pastels and normals that are het for albino. PpAa (pastel het for albino) and ppAa (normal het for albino). The problem with the using the letters is that you have to know the behavior for each gene for it to make any sense. I hope that helps, and even more I hope I got it right. lol

albino = ppAA
pastel = Ppaa
super pastel = PPaa


``````` pA `````` pA
--------------------------------
Pa | PpAa(pastel) PpAa (pastel)

pa | ppAa (normal) ppAa (normal)

All are het for albino. I hope the helps a bit.

[frankykeno]

I need more to follow this thread LOL

[Griggs2121]

You would get pastels and normals that are het for albino. PpAa (pastel het for albino) and ppAa (normal het for albino). The problem with the using the letters is that you have to know the behavior for each gene for it to make any sense. I hope that helps, and even more I hope I got it right. lol

albino = ppAA
pastel = Ppaa
super pastel = PPaa


``````` pA `````` pA
--------------------------------
Pa | PpAa(pastel) PpAa (pastel)

pa | ppAa (normal) ppAa (normal)

All are het for albino. I hope the helps a bit.

so how do you do the boxes for this?

[Rapture]

The "boxes" are right there.

[slartibartfast]

so how do you do the boxes for this?

It's a bit funky when you're combining a recessive and a dominant trait.
1. We capitalize the trait which is dominant in appearance.
So, if we are discussing the construction of pastel albinos, we would designate our animals like this:

Normal: AApp (Dominant over albino, recessive to pastel)
Albino: aapp (recessive albino, recessive pastel)
Pastel: AAPa (Dominant over albino, one copy of the dominant pastel gene)
Super pastel: AAPP (Dominant over albino, two copies of the dominant pastel gene)

For the square, you would still draw a 2x2 grid, but the components would each contain one albino and one pastel gene.

Example: Albino x pastel breeding (forgive my crude grid diagram)

____ap _|__ap__
Ap| Aapp| Aapp_
AP| AaPp| AaPp_

Results:
Aapp = het albino
AaPp = pastel het albino

Hope that helps you visualize it better!

[Griggs2121]

Thanks so much for staying with me with this. If you could give me just one more example, I think I can figure it out from there.