Allium cepa Bio Assay to Assess the Water and Sediment Cytogenotoxicity in a Tropical Stream Subjected to Multiple Point and Nonpoint Source Pollutants

Figure 2

The microscopic appearance of normal interphase cells and dividing cells in the Allium. cepa root tip meristematic region ((a): Interphase; (b): Prophase; (c): Metaphase; (d): Anaphase; (e): Telophase).

(a)

(b)

(c)

(d)

(e)