Circadian clocks are the endogenous oscillators that regulate rhythmic physiological and behavioral changes to correspond to daily light-dark cycles. Molecular dissections have revealed that transcriptional feedback loops of the circadian clock genes drive the molecular oscillation. in which PER/CRY complexes inhibit the transcriptional activity of the CLOCK/BMAL1 heterodimer to const... https://www.markbroyard.com/amazing-price-color-touch-7-97-medium-blonde-cendre-brown-online-now-mega-choice/