Fig. 1: An interphase — metabolic nucleus from a root tip meristem of Allium triquetrum (onion weed). Above the centre of the nucleus is the deeply stained nucleolus. Notice the cell wall. The large volume ratio of nucleus: cytoplasm is typical of very active cells
Fig. 1: An interphase — metabolic nucleus from a root tip meristem of Allium triquetrum (onion weed). Above the centre of the nucleus is the deeply stained nucleolus. Notice the cell wall. The large volume ratio of nucleus: cytoplasm is typical of very active cells.