Answer:
We call these characteristics an individual’s Phenotype
Explanation:
Phenotype is an important concept adopted in genetics and is usually defined as the set of observable characteristics of an organism. In this sense, this set includes the morphological and physiological characteristics of an individual.
As stated earlier, the phenotype is nothing more than the totality of the observable characteristics of an individual, which are determined by the set of our genes. Given this, we can say that the phenotype is the expression of the genotype. However, it is important to emphasize that the phenotype is not only determined by genes, but also influenced by the environment in which an individual is inserted.
Accordingly, we can conclude that when Dr. McCallum explains that the genetic information that is active in a particular person is expressed through observable traits, we call these traits an individual's phenotype.