Table 1: Dice’s similarity coefficient ( ) between susceptible and resistant strains of Biomphalaria alexandrina snails.

OPA-2OPB-18OPC-11OPD-10OPD-18

Number of shared bands ( )22321
Number of bands in susceptible not in resistant strain ( )11112
Number of bands in resistant not in susceptible strain ( )33413
Similarity coefficient ( )50%50%55%66%29%

= .