Question

The physical expression of genes

Answer 1

A physical expression of genes is what is known as a phenotype. A phenotype gives the appearances of organisms based on how it's gene are expressed and put together in a functioning form.

Answer 2

The physical expression of genes are phenotype. Phenotype is the expression of the gene by the appearnace of the organism. It is the characteristics of that trait.

Examples : When pigment is made in our eyes, height ( tall and short) , weight, blond hair is the phenotype for the blond hair genotype and skin colour( black, white ) is the phenotype trait.