Carolina Biological Supply Company Radish, Irradiated Seed Set, 5 Packs of 50

Product Details
Safely demonstrate the effects of varying degrees of radiation with these irritated radish seeds - perfect for science fairs and environmental studies. Somatic changes brought on by irradiation are often clearly visible a short time after germination begins and squash preparations of root tips show distinct disturbances of the normal mitotic pattern.
Product Features
At least 50 radish seeds per packet
Set contains untreated control packet and packets exposed to various levels of radiation (50; 150; 500; 4,000 Krads)
Seeds are safe to handle and do not give off any radiation