Master the Building Blocks of Life — Cell, Gene & Disease!

Designed for BSc First Semester Zoology students, this comprehensive textbook on Cytology, Genetics & Infectious Diseases lays a rock-solid foundation in three of the most fundamental pillars of modern biological science. Written in clear, accessible language with detailed diagrams and exam-focused content, this book is your go-to resource for semester success.

🔬 Topics Covered

Unit I — Cytology (Cell Biology)

• Prokaryotic vs Eukaryotic cell structure & ultrastructure
• Cell organelles — nucleus, mitochondria, ER, Golgi apparatus, lysosomes & ribosomes
• Cell membrane structure — fluid mosaic model, transport mechanisms
• Cell division — Mitosis & Meiosis (stages, significance & differences)
• Cell cycle regulation & checkpoints

Unit II — Genetics

• Mendelian genetics — laws of inheritance, monohybrid & dihybrid crosses
• Chromosomal theory of inheritance & linkage
• Sex determination & sex-linked inheritance
• Mutations — types, causes & significance
• DNA structure, replication, transcription & translation (Central Dogma)
• Gene expression & regulation

Unit III — Infectious Diseases

• Concepts of infection, pathogenicity & virulence
• Major bacterial, viral, protozoan & helminthic diseases
• Host-parasite relationships & immune response basics
• Epidemiology, transmission routes & disease control measures
• Case studies on diseases relevant to Indian public health

✅ Key Features

• Detailed labelled diagrams for every major topic
• Simple, exam-oriented language aligned with university question patterns
• Chapter-end MCQs, short answer & long answer practice questions
• Aligned with major Indian university syllabi (NEP 2020 compatible)
• Ideal for self-study, lab preparation & semester exam revision

From the intricate world of cells to the laws of heredity and the science of disease, this book equips BSc Zoology first-year students with the knowledge and confidence to excel in their semester examinations and beyond.