In which group of archaeplastids are the chloroplasts MOST similar to those of the ancestral cyanobacterial endosymbiont?

Question

Quizplus · Accepted Answer

Glaucocystophytes are believed to have retained the ancestral characteristics of the endosymbiotic cyanobacteria, which includes a peptidoglycan layer between the two membranes surrounding the chloroplast. Therefore, their chloroplasts are considered the most similar to those of the ancestral cyanobacterial endosymbiont.

In Which Group of Archaeplastids Are the Chloroplasts MOST Similar