Describe what the nucleus looks like.

It is like round sphere with a smaller one on the inside. called the nucleolus (usually shown as purple) with chromatin in the inside and like pores on the outside

A nucleus consists of a nuclear membrane that surrounds it, within the membrane there is a nucleolus which can be compared metaphorically to the yolk of an egg in appearance. The nucleolus is surrounded by nucleoplasm which is quite like the cytoplasm.