So we have an X, and we have an X. Now, we're going to use X with a blue uppercase C subscript SuperScript to basically describe the gene found on the X chromosome that codes for the normal color vision. So we have normal color vision. On the other hand, we're going to use X lowercase red C as the SuperScript to basically describe the gene that codes for color blindness. Now, because we're dealing with a heterozygous female individual, that means one of the X chromosomes will carry the normal gene. The other one will carry the color blind gene.