How can you identify if a person is homozygous for a certain allele?
I've been thinking about starting a small private research project. In this project I need to find out whether a person is homozygous for a certain allele. The reason for this is that I'm really trying to find out whether has a mutation that makes him/her *not* produce this chemokine. Thus I need to identify in an easy way which people are "normal", which people have the mutation in one chromosome, and which people have the mutation in both. About 1% of the population have the mutation in both chromosomes. A primer would AFAIK not be able to differ between the heterozygous and the "normal" people.Do anyone know how to approach this?