Endosymbiosis is a theory used to explain how chloroplasts evolved in plant cells. The following is a diagram showing the chromalveolate hypothesis used to explain some endosymbiotic events in dinoflagellates.

Image reproduced from The Origin of Plastids, 2010, Nature Ed.

Using the chromalveolate hypothesis, which of the following statements is false ?

Question

Endosymbiosis is a theory used to explain how chloroplasts evolved in plant cells. The following is a diagram showing the  chromalveolate hypothesis  used to explain some endosymbiotic events in dinoflagellates.

Image reproduced from  The Origin of Plastids, 2010, Nature Ed.

Using  the chromalveolate hypothesis,  which of the following statements is  false ?

Accepted Answer

The peridinin dinoflagellates evolved from a heterotrophic protist being engulfed by a red algae

Answer

A haptophyte being engulfed by a peridinin dinoflagellate is a tertiary endsosymbiotic event

Answer

Red algae evolved from endosymbiosis between a heterotrophic protist and a cyanobacterium

Answer

The haptophytes evolved from an secondary endosymbiotic event

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