Final answer:
A diagram that depicts the sequence of genes along a chromosome is called a gene map.
Step-by-step explanation:
A gene map is a graphical representation of the position and order of genes on a chromosome. It provides a visual way to understand the arrangement of genes and their relative distances from each other.
Gene maps can be created using various techniques, such as genetic mapping or physical mapping. Genetic mapping involves studying variations in genes within a population to determine their relative positions on a chromosome. Physical mapping, on the other hand, involves directly examining the physical structure of chromosomes using techniques like fluorescence in situ hybridization (FISH).
In summary, a gene map is a diagram that shows the arrangement of genes along a chromosome. It helps scientists study the organization and inheritance of genes, providing valuable insights into genetic disorders, evolution, and population genetics.