Question

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

Explanation:

In biology, phenotype refers to the observable physical and physiological traits of an individual, which are the result of the interaction between its genotype and the environment. Genes are part of the genotype, hereditary diseases are specific conditions, and chromosomes carry genes. Observable characteristics define phenotype.

Answer:

B. Their observable characteristics