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.
Genetics is the branch of biology that focuses on genes, heredity, and variation in living organisms. It studies how traits and characteristics are passed from one generation to the next through genetic material (DNA or RNA in some viruses). Genetics covers topics such as gene expression, mutation, genetic recombination, and the roles of genes in diseases and evolution.
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