That is false. Physical characteristics of an organism are genetically passed down.
—Evidence—
A characteristic that an organism can pass on to its offspring through its genes.
The set of information that controls a trait; a segment of DNA on a chromosone that codes for a specific trait.
Heredity is the biological process responsible for passing on physical traits from one generation to another.
Well for one thing DNA is basically the code for any living thing. It contains genes, like traits, that kind of make us who we are.
That's only one reason, but I hope that helps!
