comparisons of cell survivals and incidences of mitotic recombinants occurring after ultraviolet irradiation ( uv ) of these strains indicate that ( i ) aneuploids are categorically less efficient than euploids for repair of pyrimidine dimers induced in dna by uv and that ( ii ) such repair is enhanced by growing irradiated cells at 25 degrees c , on minimal medium or in the presence of ergosterol rather than at 37 degrees c , on amino acid enriched medium or medium unsupplemented with ergosterol .
C0007620
cell survivals
C0007634
cells