Is the number of genes an organism has is equal to the number of traits that organism has

For each inherited character an organism has two alleles for the gene controlling that character.. one form each parent

B. a graduated substance

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).