Wiktionary (0.00 / 0 votes) Rate this definition: participatory democracy (Noun). Kind of democracy not limiting participation of citizens to voting, but striving to create opportunities for everybody to make meaningful contributions to decision-making.
4. Minimal mitotic activity in the root tip cells of Allium ceja is reached between three and four hours subsequent to treatment with 128 r of x-rays, and between two and one-half and three hours following treatment with 512 r of x-rays. Between treatment and fixation all root tips were maintained at 32 C. 5.icia root tip after irradiation. As is shown in Table 11, Allium root tip cells, treated with 128 r of x-rays, ex-hibit no significant decrease in late prophase frequency until two and one-half hours after treatment.
Materials: microscope prepared slides of onion (allium) root tips Procedure: 1. Get one microscope for your lab group and carry it to your lab desk with two hands. Make sure that the low power objective is in position and that the diaphragm is open to the widest setting.2.Obtain a prepared slide of an onion root tip (there will be three root tips on a slide). Hold the slide up to the light to see the pointed ends of the root sections.This is the root tip where the cells were actively dividing.ake sure that the low power objective is in position and that the diaphragm is open to the widest setting.2. Obtain a prepared slide of an onion root tip (there will be three root tips on a slide). Hold the slide up to the light to see the pointed ends of the root sections.