Tobacco. For a class of 30. Students investigate the modification of the expected 1:2:1 phenotypic ratio by different light conditions. Replacement Student Guide (SG) Set includes expendables: F2 seed, germination papers, and student guides. Contents: F2 Tobacco Seed
10 Opaque Growth Chambers
10 Two-Color Growth Chambers
10 Clear Growth Chambers
30 Germination Papers
30 Student Guides
Teacher’s Manual