Sourav is the founder and sole author of Biology Notes Online. He holds a Master’s degree in Microbiology from Calcutta University and has over 5 years of experience in academic writing, life science content creation.
His content reflects hands-on lab expertise, deep subject knowledge, and a strong passion for simplifying biology for students. Whether it’s genetics, microscopy, or metabolic pathways — Sourav explains it in a way that’s accurate, exam-focused, and easy to remember.
He regularly updates and fact-checks all the material published on this site, ensuring students get trustworthy and updated biology notes with references to real scientific sources.
Molecular biology is a branch of biology that focuses on understanding biological processes at the molecular level, particularly the interactions between various cellular systems involving DNA, RNA, and proteins. It combines principles from genetics, biochemistry, and cell biology to explore the mechanisms that govern the function and regulation of genes and how they translate into cellular processes.
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