locus is the best term to describe the position of gene in the chromosome. so locus is that place within the chromosome where information about a certain trait is stored. to some extent locus is interchangeable with the term gene. homologous chromosomes have identical genes in the same loci.
Locus is the description of a position that determines the position of a gene on a chromosome. In biology, it is used to identify positions on certain sequences. This is the term used to describe this type of feature of a gene on a chromosome.
