they are also consistent with the assumption that epp is one of the active growth-inhibitory substances in the epidermal extracts , and support the hypothesis that epidermal basal cells may be more sensitive to mnu-induced carcinogenesis when the rate of cell proliferation is low , because then more cells are in late g1 or early s phase where mnu binding to dna may be relatively strong .
C0007634
cells
C0080129
s