gene

Gen

A theoretical unit of heredity of living organisms which may take several values and (in principle) predetermines a precise trait of an organism's form (phenotype), such as hair color

• If you could choose the genes for your children, would you?

  Tatoeba · Source_VOA · CC BY 2.0 FR

Gen

A segment of DNA or RNA from a cell's or an organism's genome, that may take several forms and thus parameterizes a phenomenon, such as (often) the structure of a protein