has subject area Animals Biochemical Phenomena - Enhancer Elements, Genetic Biochemical Phenomena - Repetitive Sequences, Nucleic Acid Biological Phenomena - Evolution, Molecular Biology - Genomics Cellular Structures - Cell Nucleus Cytoplasm Gene Components - Introns Genetic Phenomena - Evolution, Molecular Genetic Structures - Enhancer Elements, Genetic Genetic Structures - Repetitive Sequences, Nucleic Acid Genetics - Genomics Genome Components - Introns Humans Mice Organelles - Cell Nucleus RNA Transport RNA, Long Noncoding Regulatory Elements, Transcriptional - Enhancer Elements, Genetic