Fig. 6. Heritability of the multiple-daughter phenotype in T. gondii. Fluorescence images of parasites stained with anti-IMC1 antibody (green) and DAPI (blue). (A) A vacuole containing seven parasites (i.e. the product of at least one multiple-daughter event in previous cycles) all of which are forming two daughters in the current cycle. (B) A vacuole containing six parasites (i.e. at least one prior multiple-daughter event) two of which, numbered 1 and 2, are forming four daughters each. In both A and B, a portion of the host cell nucleus is visible in the DAPI image.