In numerous cases though, our parents have very different characteristics. Consider Figure 3 and Figure 4. Figure 3 is a population probability curve based on the Mendelian Cross similar to the one in figure 2. A Mendelian cross between two heterozygous individuals. Since the brown eyed trait is dominant, any individual carrying the Br allele will be Brown eyed.
Most people have either Blue or Brown eyes.
This allows me to say something about your genotype. On the other hand, if you have brown eyes, then your genotype is not as definite. If you carry two different alleles for the same trait, then you are heterozygous. Because the brown eyed trait is the dominant, while the blue eyed trait is recessive. See figure 2 above.