>I've been curious if anyone's ever sequenced the DNA from these lines to see if they're truly the same source organism or have diverged or another organism was

>I've been curious if anyone's ever sequenced the DNA from these lines to see if they're truly the same source organism or have diverged or another organism was slipped in their place unbeknownst to anyone not looking. Cellline contamination is a real problem where a foreign population out competes the intended cell line. There are estimates that thousands of papers have been published where the intended cellline has been accidentally replaced with HeLa.