Imagine that a researcher discovers a new type of organelle in single-celled eukaryotes. They suspect that this new organelle is the result of endosymbiosis. How could they support this theory?
a. If this organelle has its own DNA, they could compare its genetic sequence to those of certain prokaryotes.
b. All of these answer options represent ways to test this theory.
c. They could use electron microscopy to determine if any structural similarities exist between this new organelle and prokaryotic cells (such as whether it is similar to proteobacteria or cyanobacteria).
d. They could determine whether this organelle has both an inner and outer membrane.