Answer: Organelle
Explanation: A nucleus is an organelle that functions as the cell's brain, regulating its production of proteins and genetic material. The nucleus governs the cell's production of these substances by means of its deoxyribonucleic acid or DNA. ... It contains information that determines the cell's purpose and function.
Well.. Usually no...
Unless they didn't sterilize or clean the tools used for the surgery.
Which would be quite the rare occasion...
good luck!