An Ancient ________ is Assumed to Be in the Same

Question

An ancient ________ is assumed to be in the same lineage as mitochondria.
A) Rhizobium
B) Mycoplasma
C) Clostridium
D) Rickettsia
E) cyanobacterium

Accepted Answer

Rickettsia is a genus of bacteria that is known to be closely related to mitochondria evolutionarily. They share many similar characteristics, such as their small size, circular DNA, and ability to produce ATP through oxidative phosphorylation. The endosymbiotic theory suggests that mitochondria evolved from an ancestral bacterium that was similar to Rickettsia.