1 RR,Rr,Rr,rr
2 Bb,Bb,Bb,Bb
3 75%,25%
4 100%
Every box is 25% and when a box has a dominate trait (uppercase) the box will add to the percentage of the dominate trait. (Ex: RR, Rr) ONLY when the box is only lower case (ex:rr) will the box add to the recessive trait