cultures of hut 102 lymphoblasts , comprised of near-diploid and hyperdiploid cells ( 11 and 22 pg of dna/nucleus ) , were irradiated for 2 h by long wave ultraviolet light ( uv-a ) ( 2.1 mw/cm2 ) , reacted for the same time in the dark with suprapharmacologic concentrations of 8-methoxypsoralen ( 8-mop ) ( 15 micrograms/ml ) and exposed to 8-mop and uv-a ( puva ) under identical conditions .
C0007634
cells
C0007610
nucleus