Phenotypeis defined as an organism's expressed physical traits.
47,XXY. This means that he has 47 chromosomes, including 2 X chromosomes and 1 Y chromosome.
A phenotype refers to the observable physical and physiological traits of an organism, which result from the interaction of its genetic makeup (genotype) and environmental factors. These traits can include characteristics such as height, coloration, and behavior. Phenotypes can vary widely within a species due to genetic diversity and environmental influences.