Question

A gene has three alleles. how many different genotypes are possible at this locus in a diploid organism?

Answer 1

Six different genoypes are possible in a diploid organism having three alles for a gene. For example the human blood group determined by three alleles, Ia Ib,i. There are six different genotypes for blood groups , IaIa, Ia i, IbIb, Ibi, Ia Ib,ii.