Need ? when cells are grown in a laboratory, which factor can stop normal cells from dividing? a) contact with other cells. b) growth factors. c) a cut in the skin d) injection of cyclin

protocol for imps extraction focusing on membrane protein extraction, solubilisation, and purification.

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's