9) For which of the following medical conditions is the interaction of genes and environment likely to be important in the manifestation of the phenotype? A) alcoholism B) diabetes C) obesity D) A and C E) All of the above

the dark variety, as they are not visible on the dark tree barks

explanation:

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

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.