The parent function for a quadratic by f(x)=x^2

The most basic quadratic function is y = x2. This is also called the parent function of a quadratic function. Sometimes you will see it written in function notation as f(x) = x2. The graph of y = x2 looks like the graph below.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).