I am not sure where to put this question in biology or maths forum.But i finally decided to ask here.Somatic cells have two "copies" of each of chromosomes, one inherited from each parent. Each sperm cell, on the other hand, only gets one "copy" of each chromosome (either the one from your mom or your dad). So there are something like 2^23 different possible sperm configurations.Similarly there are four different types of nitrogen bases ,so they can form 4^3 i.e 64 possible combinations of triplets,called codons. How these calculations are done,i am not getting ,if i will learn this it will make my life way easier. please help.How we can understand that where should we put ( ^)[to the power raised to].......?