3. A diploid organism is heterozygous for 4 loci, how many types of gametes can be produced?
Loci refer to the place on the chromosome where genes are positioned. So, we can say that loci and genes are synonyms of each other. If a diploid organism is heterozygous for 4 loci then it will have four contrasting traits Aa, Bb, Cc, Dd and during meiosis 16 different kinds of gametes will be formed.
Formula is 2n.