Fig. 2.

The morphological and molecular characterization of Ascaris from Ecuador and Zanzibar. (A) The relationship between worm mass and length of 380 human-derived worms from Ecuador (ALE) of which 172 were subjected to PCR-RFLP, 5 pig-derived worms from Ecuador (ASE) and 68 worms from Zanzibar (ALZ), all with quadratic regression lines. One outlier from the Ecuador data set was removed due to measurement error. (B) PAGE gel image following digestion of ITS PCR products of Ecuadorian Ascaris samples with HaeIII and RsaI. Lanes: L, 100 bp ladder; 1–5, pig-derived worms; 6–10, human-derived worms.