In Pea plants, we can either have green seeds or we can have yellow seeds. And what that means is we have two different types of alleles. Possible. We have the allelat codes for the color green or we can have the allelat codes for the color yellow. So this particular trait, the color trait for seed color and Pea plants comes in two different alleles. So we have the green allele and we have the yellow allele.