All are correct w.r.t. multiple alleles except

• A

  More than two alleles are present within a group of individuals at the same locus.

• B

  As there may be more than two alleles present within a group, the genotype of each diploid individual therefore consists of more than two alleles.

• C

  A greater variety of genotypes and phenotypes are possible in multiple alleles as compared to the inheritance of characteristics encoded by two alleles.

• D

  Multiple alleles can be studied only in populations.