Complex sentence: These properties can be illustrated with relative ease "in vitro", using methods such as clonogenic assays, where the progeny of a single cell is characterized, however, it is known that "in vitro" cell culture conditions can alter the behavior of cells.
Split into simpler sentences: These properties can be illustrated with relative ease "in vitro", using methods such as clonogenic assays, where the progeny of a single cell is characterized. However, it is known that "in vitro" cell culture conditions can alter the behavior of cells.