Compare myself with my sister. What traits, abilities, and interests do we share? Speculate on the roles of genetics and environment in the development of our similarities and differences.
While each human being is a unique individual, there are several factors that contribute to the shaping of one's physical traits, physical and intellectual abilities, and interests. I feel that the role that genetics and the environment play can be examined more closely when observing siblings.
Physical traits, those which we have no control, are the first that I will discuss. My sister, Rebecca, has straight brown hair, brown eyes, she is kind of chubby, and she has large feet and hands. I on the other hand am tall and skinny, I have brown eyes, brown hair and also have large feet and hands. You probably already think you have a good idea of what my parents look like, well, we will soon see how close you were as we talk about the part genotypes played in the development of these physical traits.
Genotypes are the sets of traits that we inherit from our parents. We inherit these traits through genes, each of our parents' genes carry traits, and which traits we get from our parents depends primarily on the genes dominant or recessive traits. Since my mother and father both have brown hair, and at least one of my parents probably carries genes for brown hair only, my sister and I both have brown hair. The exact same scenario holds true for the color of our eyes. Next let's figure out why I am taller and skinnier than my chubby sister. Neither of my parents are as tall as I am, but both are about the same height as my sister. My father is...