Question

what is the phenotype of an individual? a) a hereditary disease b) their chromosomes c) their observable characteristics d) their genes

Explanation:

In biology, phenotype refers to the observable physical and physiological characteristics of an individual, which are the result of the interaction between its genotype (genetic makeup) and the environment. Hereditary diseases are specific conditions, chromosomes are structures containing genes, and genes are segments of DNA. None of these directly define phenotype.

Answer:

c) Their observable characteristics