<Dl> <Dd> p 2 + q 2 + r 2 + 2 p q + 2 p r + 2 q r = 1 . (\ displaystyle p ^ (2) + q ^ (2) + r ^ (2) + 2pq + 2pr + 2qr = 1. \,) </Dd> </Dl> <Dd> p 2 + q 2 + r 2 + 2 p q + 2 p r + 2 q r = 1 . (\ displaystyle p ^ (2) + q ^ (2) + r ^ (2) + 2pq + 2pr + 2qr = 1. \,) </Dd> <P> In the case of multiple alleles at a diploid locus, the number of possible genotypes (G) with a number of alleles (a) is given by the expression: </P> <Dl> <Dd> G = a (a + 1) 2 . (\ displaystyle G = (\ frac (a (a + 1)) (2)).) </Dd> </Dl>

Where are different alleles of the same gene found