Eli And Peyton Manning: A Genetic Analysis

It is common knowledge that while siblings may be related, that does not necessarily mean that they will look alike. Take for example, the two football players, Eli and Peyton Manning, one might wonder how two brothers do not really resemble one another and how that might be. The answer however is pretty simple; it is all genetics. Upon taking a closer look, it will be easy to see why this happens. Since both brothers came from the same parents, those parents both have distinct traits that could be passed on to the offspring. It all depends on which traits are dominant or recessive in each allele; this will contribute to the probability of the child getting a specific trait. These traits could be height, eye color, hair color and etc. If …show more content…
There is still a chance that it will not be passed down, but more than likely it will be. With that though, if the alleles that are being passed down are both dominant; than the alleles are both shown and that is called codominance (Barekzi, 2016). There are two other possibilities for dominant traits as well. Those are complete dominance and incomplete dominance. Complete dominance is when the offspring only looks like one of their parents and not like the other and incomplete dominance occurs when the offspring does not look like either one of its parents (Barekzi, 2016). Either one of these could have also contributed to the difference in appearance between the two brothers. One could have inherited all of their traits from the father or mother; while the other one could have inherited none of the traits. However, one of the parents could also