The number of pairs of flagella in the below organism is
Trophozoite of Giardia lamblia:*Shape: viewed flat-tennis or badminton racket; viewed side- pear shaped*Dorsal surface: convex*Ventral surface: concave with sucking disc*Anterior end: broad and rounded*Posterior end: tapers to a sharp point*Bilaterally symmetrical and there are 2 axostyles, 2 nuclei and 4 pairs of flagellaRef: K.D Chatterjee 13th edition, p47-48
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parasitology