Which one of the following statements is false ?

Ans. is 'c' i.e., A low iron content in the predisposes to invasive amoebiasis . There is no relation between dietary iron and invasive amboebiasis. . The presence of erythrocytes in the cytoplasm is diagnostic of E. histolytica as it is the only intestinal amoeba to exhibit this characteristic - Rajesh Karyakae . Infection is more common in adults than in children and in males than in females with low socioeconomic status. . There are distinct invasive and noninvasive strain of E. histolytica. These strains vary according to their isoenzyme patterns (zymodemes). E. histolytica strains have 22 zymodemes (isoenzyme patterns) of these 10 zymodemes are invasive and 12 are non-invasive