Gene flow is the transfer of genetic material from one population to another. This process can occur through migration, hybridization, or interbreeding. There are several terms used to describe gene flow, with some of the most common being gene migration, genetic drift, and gene transfer. Gene migration refers to the movement of alleles between populations, while genetic drift refers to the random changes in allele frequencies that occur in populations over time. Gene transfer can also describe gene flow, but it typically refers to the deliberate transference of genetic material between organisms, such as during genetic engineering. Overall, the various synonyms for gene flow all convey the idea of genetic exchange between populations or organisms.