Fig. 4

Egg-to-adult viability and fecundity are not likely to reduce the probability of finding flies with more than one roo element in the CG18446 promoter region. a. Percentage of emerged flies from the four crosses tested. b. Average number of eggs laid per day during the first 48 h for each of the four crosses analyzed. c. Average number of eggs laid per day during 18 days for each of the four crosses analyzed