What term describes the position of genes on DNA?

The term that describes the position of genes on DNA is "loci." In genetics, a locus (plural: loci) refers to the specific, fixed position on a chromosome where a particular gene or genetic marker is located. It is important to understand that loci can refer to both the coding regions (genes) and non-coding regions of DNA; they simply indicate where these sequences are found along the chromosome.

In contrast, alleles are different versions of a gene that may occupy the same locus on homologous chromosomes. Chromosomes are the structures that hold many genes; they are made up of DNA and proteins and contain multiple loci. The genome is the complete set of an organism's genetic material, encompassing all its chromosomes and loci, but it does not specifically refer to the position of individual genes.