Microhomology refers to the regions of DNA that are identical or nearly identical in sequence between two nearby double-stranded DNA molecules. These regions can occur naturally or arise during DNA repair mechanisms. Other terms used to describe this phenomenon include microsatellite, microdeletion, and microinsertion. However, there are distinctions between these terms and microhomology. For example, microsatellites refer to repeated DNA sequences whereas microdeletions and microinsertions involve the loss or addition of DNA nucleotides. While these terms are used interchangeably, it's important to note their subtle differences in order to properly describe the genetic changes occurring in DNA.