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Updated: Jul 18, 2026

Genome-wide Determination of Mammalian Replication Timing by DNA Content Measurement
Published on: January 19, 2017
DNA replication timing: random thoughts about origin firing
1Biochemistry and Molecular Pharmacology Department, University of Massachusetts Medical School, 364 Plantation Street, LRB904, Worcester, MA 01605, USA. nick.rhind@umassmed.edu
Abstract:
Regions of metazoan genomes replicate at defined times within S phase. This observation suggests that replication origins fire with a defined timing pattern that remains the same from cycle to cycle. However, an alterative model based on the stochastic firing of origins may also explain replication timing. This model assumes varying origin efficiency instead of a strict origin-timing programme. Here, we discuss the evidence for both models.
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