Assertion: dinoflagellate's chloroplast | /r/HasProperty | contained by three membranes
Facets:
value: unusually
type: DEGREE
Source sentences:
text: Because dinoflagellate chloroplasts are unusually contained by three membranes, as opposed to a normal one or two, it is believed that they likely have evolved a tertiary endosymbiosis with a plasmid that contains the additional photosynthetic pigment complex of peridinin (Morden and Sherwood 2002).