Ribosomal RNA- based studies reveal that
A) all organisms are thought to have diverged from a common ancestral organism (LUCA) or community of organisms.
B) all prokaryotic organisms are related but that all eukaryotic organisms are not necessarily related.
C) all eukaryotic organisms are related but that all prokaryotic organisms are not necessarily related.
D) the Archaea are most closely related to the viruses.

Question

Quizplus · Accepted Answer

Ribosomal RNA-based studies have shown that all organisms share a common ancestor, often referred to as LUCA (the Last Universal Common Ancestor). This supports the theory of evolution and the idea that all life on Earth is related through a process of descent with modification. While there are still many unanswered questions about the details of this common ancestor and the pathways of evolution that led to the diversity of life we see today, the evidence from these studies is clear in showing that all organisms are connected through a shared evolutionary history.

Ribosomal RNA- Based Studies Reveal That