genomic stability

The molecular structure of DNA is a cornerstone of modern biology, revealing how genetic information is stored and transmitted within living organisms. The double helix, a twisted ladder-like formation, consists of two complementary strands held together by hydrogen bonds between nitrogenous base pairs, a design first elucidated by Watson and Crick. This article provides an in-depth look at the components of the DNA double helix, including the sugar-phosphate backbone, base pairs, and individual nucleotides, using a detailed medical diagram to illustrate these critical elements.

The cell cycle is a tightly regulated process that governs cell growth and division, orchestrated by key molecules like cyclins and cyclin-dependent kinases (CDKs). This article examines a detailed diagram of the control of the cell cycle, highlighting how these molecules ensure proper progression through each phase, from G1 to mitosis. By understanding these regulatory mechanisms, we gain insight into the molecular checkpoints that maintain cellular health and prevent uncontrolled division.