Final answer:
Linked genes are those that are located close together on the same chromosome. The alleles of linked genes tend to be transmitted together during meiosis. Geneticists have constructed linkage maps to determine the distance between linked genes on chromosomes.
Step-by-step explanation:
Linked genes are those that are located close together on the same chromosome. When two genes are located in close proximity on the same chromosome, they are considered linked, and their alleles tend to be transmitted through meiosis together. Geneticists have used the proportion of recombinant gametes (the ones not like the parents) as a measure of how far apart genes are on a chromosome. Using this information, they have constructed linkage maps of genes on chromosomes for well-studied organisms, including humans.