A Diploid organism is heterozygous for 4 loci , how many types of gametes can be produced?

if suppose the genotype is AaBbCcDd (heterozygous for 4 loci)

2 raised to the pwr 4 = 16 gametes.

ABCD, ABCd, ABcD, ABcd, AbCD, AbCd, AbcD, Abcd ...now place 'a' in A's position nd get the oder 8 types of gametes.