- through clone-variation and selection, the resistant cells may take over a whole colony.

Equally obviously, those resistant cells would seem to produce an antitoxin.

Cancer therapies act as a form of artificial selection, killing sensitive cancer cells, but leaving behind resistant cells.

Adaptive changes in kinase expression have been characterized in a variety of drug resistant cells.

Such resistant cells may suffer the lack of a key nutrient (such as iron or vitamin B) but benefit by not being killed.

Thick-coated cells, resistant to heat, dessication, and long-term starvation.

Zeocin resistant cells were then cloned by limiting dilution into 96 well plates.

Can new drugs or treatment regimens overcome the p53 effect and make resistant cells sensitive?

Those resistant cells tend to shrug off chemotherapy drugs that should kill them.

Insulin resistant cells are not able to take in glucose, amino acids and fatty acids.