Now, the uncolored shape basically means we're dealing with an individual that has a normal phenotype, and that individual is a non carrier. The colored shape basically means we're dealing with an individual that exhibits color blindness. They have the phenotype for color blindness, while half colored means they have the normal phenotype, but they are a carrier. Now, what do we mean by a carrier? Well, that means we're dealing with a heterozygous individual. And what that implies is our inheritance for that particular disease must be recessive.