context: The fucoxanthin dinophyte lineages (including Karlodinium and Karenia) lost their original red algal derived chloroplast, and replaced it with a new chloroplast derived from a haptophyte endosymbiont. Karlodinium and Karenia probably took up different heterokontophytes. Because the haptophyte chloroplast has four membranes, tertiary endosymbiosis would be expected to create a six membraned chloroplast, adding the haptophyte's cell membrane and the dinophyte's phagosomal vacuole. However, the haptophyte was heavily reduced, stripped of a few membranes and its nucleus, leaving only its chloroplast (with its original double membrane), and possibly one or two additional membranes around it.
question: ৩. হ্যাপ্টোফাইট ক্লোরোপ্লাস্টের তৃতীয় পর্যায়ের এন্ডোসিম্বায়োসিস কী তৈরি হবে বলে আশা করা হচ্ছে?
answers: a six membraned chloroplast a six membraned chloroplast six membraned chloroplast