Continuously, eukaryotic enzymes encounter DNA damage which can perturb DNA replication. Prenatal cannabis exposure (PCE) has been shown to perturb the fetal endogenous cannabinoid signaling system. Unfortunately quantization errors can perturb the array pattern enough to cause complications. The principal cause is the presence of other planets which perturb one another's orbit. The small inner moons constantly perturb each other. Although a strong oxidant, RuO oxidations do not perturb stereocenters that are not oxidized. Depending on the location of the insertion, NUMTs might perturb the function of the genes. For a labeling experiment to be considered robust, that functionalization must minimally perturb the system. In the absence of something to perturb them they fall evenly through space.