Here's a breakdown:

* Phenotype: The observable characteristics of an organism, including its physical appearance, development, and behavior. This is the result of the interaction between an organism's genotype and its environment.

* Genotype: The genetic makeup of an organism. This is the specific set of genes that an organism inherits from its parents.

For example:

* Genotype: Having the gene for blue eyes

* Phenotype: Having blue eyes

So, the phenotype is what you see, and the genotype is the underlying genetic code that contributes to that phenotype.