Final answer:
Linkage is the phenomenon in which genes that are located close together on the same chromosome tend to be inherited together. During meiosis, these linked genes are more likely to segregate together, unless they undergo crossing-over.
Step-by-step explanation:
Linkage is the phenomenon in which genes that are located close together on the same chromosome tend to be inherited together. During meiosis, these linked genes are more likely to segregate together, unless they undergo crossing-over. Crossing-over occurs when two homologous chromosomes exchange genetic material. The closer two genes are on a chromosome, the less likely their alleles will be separated by crossing-over.