My Genetics Practice pair included a homozygous wild bay (A+A+) and a homozygous recessive agouti (aa). Which should have been (Aza) no matter the foal result. Yet, GP said I was wrong?

I noted everything from the hypothetical parents to my answers.

Sire https://horseeden.com/horse.php?id=43556762 :
EE,A+A+,CcrC,rnrn,DD,PrlPrl,zz,chch,gg,ww,toto,splspl,sbsb,rbrb,oo,LpLp,patn-1patn-1,PATN-2PATN-2

Dam https://horseeden.com/horse.php?id=42682534 :
Ee,aa,CC,Rnrn,dd,PrlPrl,zz,chch,gg,ww,Toto,splspl,sbsb,rbrb,oo,lplp,patn-1patn-1,patn-2patn-2

Instructions on Wild Bay Gene (A+):
"Agouti for Brown should be listed as At, and Wild Bay as Az."

So Sorry, you didn't have correct answers today. Try again tomorrow.

My Answers:

EE,Aza,CcrC,Rnrn,Dd,PrlPrl,zz,chch,gg,ww,Toto,splspl,sbsb,rbrb,oo,Lplp,patn-1patn-1,PATN-2patn-2
EE,Aza,CcrC,Rnrn,Dd,PrlPrl,zz,chch,gg,ww,toto,splspl,sbsb,rbrb,oo,Lplp,patn-1patn-1,PATN-2patn-2
EE,Aza,CcrC,rnrn,Dd,PrlPrl,zz,chch,gg,ww,Toto,splspl,sbsb,rbrb,oo,Lplp,patn-1patn-1,PATN-2patn-2
EE,Aza,CcrC,rnrn,Dd,PrlPrl,zz,chch,gg,ww,toto,splspl,sbsb,rbrb,oo,Lplp,patn-1patn-1,PATN-2patn-2
EE,Aza,CC,Rnrn,Dd,PrlPrl,zz,chch,gg,ww,Toto,splspl,sbsb,rbrb,oo,Lplp,patn-1patn-1,PATN-2patn-2
EE,Aza,CC,Rnrn,Dd,PrlPrl,zz,chch,gg,ww,toto,splspl,sbsb,rbrb,oo,Lplp,patn-1patn-1,PATN-2patn-2
EE,Aza,CC,rnrn,Dd,PrlPrl,zz,chch,gg,ww,Toto,splspl,sbsb,rbrb,oo,Lplp,patn-1patn-1,PATN-2patn-2
EE,Aza,CC,rnrn,Dd,PrlPrl,zz,chch,gg,ww,toto,splspl,sbsb,rbrb,oo,Lplp,patn-1patn-1,PATN-2patn-2

Same issue here. Really struggling with wild bay.

In my combo the sire was aa and the dam A+A (chimera). Am i correct to think that A+A should be written as AzA? Or is it AzAz?

I had given up Aza and Aa as possibilities, but none of my answers were correct.