Angelman SyndromePrader-Willi SyndromeChromosomes, Human, Pair 15snRNP Core ProteinsGenomic ImprintingSyndromeUbiquitin-Protein LigasesBloom SyndromeWerner SyndromeUniparental DisomyRecQ HelicasesLaughterChromosome MappingRibonucleoproteins, Small NuclearBeckwith-Wiedemann SyndromeAbnormalities, MultiplePedigreePhenotypeChromosome DeletionIntellectual DisabilityMicrocephalyMutationChromosome InversionDNA MethylationGenetic LociIn Situ Hybridization, FluorescenceBardet-Biedl SyndromeGenetic MarkersMicrosatellite RepeatsChromosome BreakageMolecular Sequence DataMicrotubule ProteinsAtaxiaBase SequenceDNA HelicasesChromosome BandingKallmann SyndromeGenetic CounselingMandibulofacial DysostosisAutoantigensSequence DeletionMethyl-CpG-Binding Protein 2GenotypeFathersSmith-Lemli-Opitz SyndromePeutz-Jeghers SyndromeChediak-Higashi Syndrome