Question

Isaac and Xavier are playing basketball. Isaac shoots the ball and Xavier blocks the shot. Isaac says, "Wow, I didn't realize how tall you were until you did that!" Xavier's comment refers to Isaac's _____.

Answer 1

Xavier's comment refers to Isaac's phenotype.

Step-by-step explanation:

Phenotype refers to an individual's observable traits. It is the genotype's expressiveness and it can be either behaviors or physical traits.

In this case Xavier is referring to Isaac's phenotype since he is talking about his height which is a visible physical trait.