Answer the following question given this paragraph: 

The nucleus is the largest organelle in a eukaryotic cell. It contains most of the cell’s DNA. DNA, in turn, contains the genetic code. This code “tells” the cell which proteins to make and when to make them. You can see a diagram of a cell nucleus in Figure below . Besides DNA, the nucleus contains a structure called a nucleolus. Its function is to form ribosomes. The membrane enclosing the nucleus is called the nuclear envelope. The envelope has tiny holes, or pores, in it. The pores allow substances to move into and out of the nucleus.


Q: What is the largest organelle in a eukaryotic cell?


A:
nucleus