The word sophomoric, an adjective dating from 1813, is used to refer to and describe something or someone that is conceited, overconfident, poorly informed and immature, as characterized by a stereotypical high school sophomore. The phrase can be derisive, but is also used to refer to a style or vein of comedic act.
Phenotype: An appearance or characteristic of an individual, which results from the interaction of the person's genetic makeup and his or her environment. By contrast, the genotype is merely the genetic constitution (genome) of an individual.
A phenotype (from Greek phainein, meaning 'to show', and typos, meaning 'type') is the composite of an organism's observable characteristics or traits, such as its morphology, development, biochemical or physiological properties, behavior, and products of behavior (such as a bird's nest).