Question: what is the difference between multiple alleles?
Answer: multiple alleles refer to that with more than 2 alleles for one gene/phenotype. ... POLYGENIC means a trait controlled by more than 2 genes, whereas MULTIPLE ALLELES refers more than 2 type of alleles of a gene. The former one has more than 2 GENES and the later on has more than 2 TYPE OF A PARTICULAR GENE!