This depends on what you want to do. The DNA can certainly be sequenced. They might even be viable if you’re nice to them. What I mean to say is this is an acc

This depends on what you want to do. The DNA can certainly be sequenced. They might even be viable if you’re nice to them. What I mean to say is this is an accepted practice in many labs, including ones I have worked in. In my experience, these were old tumor cells stored in LN2. Sources include: https://link.springer.com/article/10.1007/BF01131376 https://link.springer.com/article/10.1007/BF01131376 https://pubmed.ncbi.nlm.nih.gov/9336042/ https://pubmed.ncbi.nlm.nih.gov/9336042/ https://pubmed.ncbi.nlm.nih.gov/27792414/ https://pubmed.ncbi.nlm.nih.gov/27792414/