The nucleus of a cell is also called the control center of the cell. It contains all the instructions for protein synthesis and the genetic material. Thus it also helps regulate the cell's activates.
Based on this information, we can assume it is like a computer that controls all activities.
It doesn't store materials, except DNA, it doesn't directly synthesize any molecules, and it doesn't produce energy.
I don't think doctors are supposed to do that but if they are I'm guessing it's probably to kill a infection of some kind or speed up the healing process
Explanation: DNA polymerase is the enzyme that matches and lays down nucleotides to build the daughter DNA strand along each parent DNA strand. Now we're left with all these Okazaki fragments that are separate from each other, so they need to be joined together by the enzyme DNA ligase
