Some key innovations in the evolution of eukaryotic cells from a prokaryotic ancestor are membrane-bound organelles.Which of the following organelles or features is a common structure shared by both eukaryotic cells and their prokaryotic ancestors?
A)ribosomes
B)chloroplasts
C)mitochondria
D)nuclear envelope

Question

Quizplus · Accepted Answer

Ribosomes are present in both prokaryotic and eukaryotic cells, and are responsible for protein synthesis. Chloroplasts, mitochondria, and the nuclear envelope are all unique to eukaryotic cells, and are thought to have evolved through endosymbiosis.

Some Key Innovations in the Evolution of Eukaryotic Cells from a Prokaryotic