PeriodicityFourier AnalysisCircadian RhythmBiological ClocksMicroscopy, ElectronNucleosomesX-Ray DiffractionPitch PerceptionChronobiology PhenomenaEucommiaceaeCircadian ClocksTime FactorsAcanthaceaeBase SequenceDNAMolecular Sequence DataAcoustic StimulationSolar ActivityProkaryotic CellsProtein Structure, SecondaryMicroscopy, Scanning TunnelingNucleic Acid ConformationAuditory PathwaysModels, BiologicalAmino Acid SequenceTandem Repeat SequencesSomitesAlgorithmsComputer SimulationDNA, HelminthPaleontologyProtein ConformationPitch DiscriminationSound SpectrographyEscherichia coli K12Period Circadian ProteinsCLOCK ProteinsSeasonsMicroscopy, Atomic ForceSuprachiasmatic NucleusPsychoacousticsLightFreeze EtchingCircadian Rhythm Signaling Peptides and ProteinsBiophysicsDental EnamelNoiseModels, MolecularTemperatureAuditory PerceptionAction PotentialsNucleotidesCodonGenetic CodeAuditory CortexProteinsInferior ColliculiFossilsBase CompositionTropomyosinDarknessSequence AlignmentCollagenModels, GeneticMarine BiologyTranscription, GeneticVocal CordsPhysicochemical PhenomenaBiological EvolutionFerretsChemistry, PhysicalReaction TimeBody PatterningMyosinsSequence Analysis, DNAMicroscopy, Electron, ScanningFreeze FracturingChromatinModels, StructuralNeuronsBiophysical PhenomenaARNTL Transcription FactorsActin CytoskeletonCell CycleOscillometryClimateCytoplasmHumidityAuditory ThresholdCalorimetry, Differential ScanningCattleMutationGenetic DriftRabbitsTranscription FactorsChickensWakefulnessMicrococcal NucleaseBacterial ProteinsStaining and Labeling