You can determine Hetero beige by simply looking at the pedigree. If only one parent carries the beige gene, any beige born will be Hetero. If both parents are beige,or at least carry the beige gene, then the beige offspring could be Homo. To validate for complete certainty that a beige is Homo, it needs to be bred and proven to carry the beige gene on to all of its offspring. Then you know for sure you have a Homo beige.