The nucleus is important to a living cell because <span> it serves the function of information storage, retrieval and duplication of genetic information. It is a double membrane‐bound organelle that harbours the genetic material in the form of chromatin.</span>
Breaking cells open to release the DNA.
Separating DNA from proteins and other cellular debris.
Precipitating the DNA with an alcohol.
Cleaning the DNA.
Confirming the presence and quality of the DNA.
It is called a nucleus. It's what determines what type of metal, gas, or whatever on the table.
Because soap is more basic, adding the acidic solution of lemon juice will decrease the pH value and cause it to become more acidic.