The common ancestor of life probably had
A) membrane-bound organelles.
B) operons.
C) a Golgi apparatus.
D) a circular chromosome.
E) a nucleus.

Question

Quizplus · Accepted Answer

The common ancestor of life is believed to have had a circular chromosome, as it is the most basic form of genetic material and is found in all domains of life (bacteria, archaea, and eukarya). The other options (membrane-bound organelles, operons, Golgi apparatus, and nucleus) are more complex structures found in some but not all organisms and are thought to have evolved after the common ancestor of life.

The Common Ancestor of Life Probably Had