Every living organism grows, heals, and renews itself. This happens because individual cells know when to grow, copy their DNA, and divide. We call this orderly sequence the cell cycle. It is nature’s most reliable duplication system. It turns one…
Every time a cell divides, it must replicate nearly 3 billion base pairs of DNA. This process consumes large amounts of energy and places heavy stress on the cell. Once DNA replication begins, the process cannot easily be reversed. Therefore,…
In 1958, just five years after Watson and Crick discovery of the double helix, a lingering question gripped the molecular biology community: How, exactly, does DNA duplicate itself? Matthew Meselson and Franklin Stahl solved this riddle with an experiment so elegant…
Have you ever wondered how your body knows how to build itself—cell by cell, organ by organ? The answer lies in DNA (Deoxyribonucleic Acid). DNA is the genetic instruction manual of life. From the color of your eyes to how…
DNA replication in bacteria is carried out by a group of enzymes called DNA polymerases. To understand how cells maintain genetic stability, it is important to study the types of DNA polymerase in prokaryotes and their functions. Prokaryotic organisms, such…
The Central Dogma of Molecular Biology is the fundamental principle that explains how genetic information flows inside cells. Biology is full of beautiful simplicity hidden within complex processes. One of the most fundamental frameworks in molecular biology is the central…