The specific term is gene locus. If the exact location is known then there is more specific terminology that refers to the chromosome number whether the locus is on the short (p) or long (q) arm of the chromosome and it's specific location based on band and sub-band location.

Gene locus is a specific location on an allele.

The position is called locus (plural: loci).

1. A gene is a piece of DNA that provides a set of instructions to a cell to make a certain protein, a locus is a specific position on a pair of homologous chromosomes, and a allele is any of the alternative forms of a gene that may occur at a specific locus.

1. A gene is a piece of DNA that provides a set of instructions to a cell to make a certain protein, a locus is a specific position on a pair of homologous chromosomes, and a allele is any of the alternative forms of a gene that may occur at a specific locus.