Frequencies of small, large, twin and total mosaic spots in <i>D</i>.<i>melanogaster</i> wings of individuals treated with Chios mastic oil (CMO), mitomycin-C (MMC) (2.5 <i>μ</i>g/ml) or their mixture.

1The number of mutant spots is given in parenthesis. Symbols next to values signify the following: +, positive mutagenic effect;-, no mutagenic effect; i, inconclusive effect (p = 0.05); Statistical diagnosis according to Frei & Würgler [38]. Frequencies of small, large, twin and total mosaic spots in D.melanogaster wings of individuals treated with Chios mastic oil (CMO), mitomycin-C (MMC) (2.5 μg/ml) or their mixture.