Define nucleus and state its major parts.
Nucleus is a dense round body found in the centre of an animal cell and mostly on the periphery of the plant cell. The nucleus controls all the activities in the cell like digesting movement of substances within the cell. Nucleus also controls the process of cell division. This is the reason nucleus is also known as the ‘brain of the cell’. Nucleus consists of four major parts. They are: Nuclear membrane Nucleoplasm Nucleolus Chromatin
