Recall that if two genes are located close to each other on the same chromosome, it is less likely that a recombination event will occur between them during gamete formation; indeed, it is highly likely that the genes are linked, so their two alleles will cosegregate.

What is Cosegregate?

(KOH-seh-greh-GAY-shun) The transmission, together, of 2 or more genes on the same chromosome, as a result of their being in very close physical proximity to one another (i.e., linked).

How does gene linkage affect inheritance?

Does this affect how genes are inherited? ... Genes that are sufficiently close together on a chromosome will tend to "stick together," and the versions (alleles) of those genes that are together on a chromosome will tend to be inherited as a pair more often than not. This phenomenon is called genetic linkage.