Question

Approximately how many years ago did RNA molecules act as both genetic material and biological catalysts on early Earth?

Options

• 4 billion years ago

• 1 billion years ago

• 2 billion years ago

• 6 billion years ago

Answer 1

The RNA World Hypothesis proposes that approximately 4 billion years ago, RNA molecules served dual roles as both genetic material (storing hereditary information) and as biological catalysts (performing enzymatic functions) in early life on Earth.