Question

According to the RNA World Hypothesis, why did DNA eventually replace RNA as the primary genetic material?

Options

• DNA is more stable as hereditary material

• Proteins could only work with DNA

• RNA caused mutations too frequently

• DNA is more abundant in nature

Answer 1

The RNA World Hypothesis proposes that modern cells eventually transitioned from an RNA-based system to a DNA-based one because DNA is considered more stable as hereditary material. This greater chemical stability made DNA superior for long-term storage of genetic information, while RNA retained critical roles in modern cells.