16/07/2026
How did life begin on Earth?
Billions of years ago, our planet was a barren, hostile world. Yet, from simple chemicals, water, energy, and time emerged the first building blocks of life. This extraordinary journey—from chemistry to biology—is known as abiogenesis.
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Image Credit: Origin of life. Odra Noel. Source: Wellcome Collection.
Written by: Sauvik Das Naskar
One of the biggest puzzles in biology is: Which came first—DNA or proteins?
The RNA World Hypothesis offers a fascinating answer. Unlike DNA or proteins, RNA can both store genetic information and catalyse chemical reactions, potentially making it the first self-replicating molecule.
Recent research suggests life may have emerged through a partnership between RNA and simple peptides, eventually forming protocells capable of evolution.
The story of life’s origins is still unfolding, but it reveals how non-living chemistry may have transformed into the first living systems.
The original article was published in SciTales by CSIR-CCMB: https://buff.ly/S4zq68W