MITEs are
Miniature inverted-repeat transposable elements MITEs are short non-autonomous Class II derivatives typically 100-600 bp that originated from autonomous DNA transposons through internal deletion losing transposase gene while preserving terminal inverted repeats and target site duplication signals. Unable to encode enzymes, MITEs rely on transposase of autonomous relatives for mobilization yet proliferate extensively in plant genomes like rice and maize. Their preferential insertion near genes influences promoter architecture, generates small RNAs, and contributes to genome size variation and regulatory evolution. This principle illustrates essential molecular mechanisms governing replication fidelity and mutation fixation relevant for exam interpretation.
Ref: NCBI Bookshelf, Mobile DNA II, Chapter 5: MITEs as Non-Autonomous DNA Transposons